#FFCA28 colour

#FFCA28 is a vivid amber close to CSS gold. RGB 255, 202, 40, HSL 45, 100%, 58%. Black text passes AAA (13.73:1), white fails (1.53:1).

#FFCA28

Nearest CSS name: gold #ffd700 (not an exact match)
Described as: a vivid amber
Red, green, blue: 255, 202, 40
Material 2014: Amber 400
Web safe: No
Luminance: 0.6365 (WCAG relative luminance, 0 is black, 1 is white)

Colour codes

HEX	`#ffca28`
RGB	`rgb(255, 202, 40)`
RGB (percent)	`rgb(100% 79.2% 15.7%)`
HSL	`hsl(45.2, 100%, 57.8%)`
HSV / HSB	`hsv(45.2, 84.3%, 100%)`
HWB	`hwb(45.2 15.7% 0%)`
CMYK (naive)	`cmyk(0%, 21%, 84%, 0%)`
CIELAB (D50)	`lab(84.34% 9.6 78.71)`
OKLCH	`oklch(86.22% 0.1681 88.31)`
Decimal	`16763432`

CMYK here is the plain formula with no colour profile, so treat it as a starting point; a printer's profile gives the real ink values. CIELAB uses a D50 white point, as CSS lab() does. HSV is not a CSS function, so it is shown for design apps only.

Contrast with white and black text

White text, 1.53:1The quick brown fox jumps over the lazy dog.

Black text, 13.73:1The quick brown fox jumps over the lazy dog.

Text	Ratio	AA normal (4.5)	AA large (3)	AAA normal (7)	AAA large (4.5)
White	1.53:1	Fail	Fail	Fail	Fail
Black	13.73:1	Pass	Pass	Pass	Pass

Black text is the better choice on #FFCA28 (13.73:1). Ratios use the WCAG 2.2 formula; large text means at least 24px, or 18.66px bold. Check another pair.

Tints and shades

Mixed with white, then with black, in ten even steps (straight sRGB mixing, as most design tools do).

9%#ffcf3c 18%#ffd44f 27%#ffd863 36%#ffdd76 45%#ffe28a 55%#ffe79d 64%#ffecb1 73%#fff1c4 82%#fff5d8 91%#fffaeb

9%#e8b824 18%#d1a521 27%#b9931d 36%#a28119 45%#8b6e16 55%#745c12 64%#5d490f 73%#46370b 82%#2e2507 91%#171204

Colour harmonies

Hue turned around the HSL colour wheel, saturation and lightness kept.

Complementary

The hue opposite on the colour wheel (180°).

#ffca28 #285dff

Analogous

Neighbours 30° either side.

#ff5e28 #ffca28 #c9ff28

Triadic

Three hues 120° apart.

#ffca28 #28ffca #ca28ff

Split complementary

The two hues either side of the complement (150° and 210°).

#ffca28 #28c9ff #5e28ff

Tetradic (square)

Four hues 90° apart.

#ffca28 #28ff5f #285dff #ff28c9

How it looks with colour blindness

Normal vision#ffca28 Protanopia#e3c900 Deuteranopia#f0d734 Tritanopia#ffb7ad Achromatopsia#d1d1d1

Simulated with the Machado, Oliveira and Fernandes (2009) matrices at full severity, applied in linear RGB; achromatopsia shows the colour's luminance as grey. Milder forms (protanomaly, deuteranomaly) are far more common and shift colours less. Never use colour as the only way to carry meaning.

Material Amber palette

50#fff8e1 100#ffecb3 200#ffe082 300#ffd54f 400#ffca28 500#ffc107 600#ffb300 700#ffa000 800#ff8f00 900#ff6f00 A100#ffe57f A200#ffd740 A400#ffc400 A700#ffab00

CSS

Text colour	`color: #ffca28;`
Background	`background-color: #ffca28;`
Border	`border: 1px solid #ffca28;`
Half transparent	`background-color: rgb(255 202 40 / 50%);`
Custom property	`--colour-main: #ffca28;`
Gradient to a darker shade	`background: linear-gradient(135deg, #ffca28, #997918);`
Gradient from a lighter tint	`background: linear-gradient(180deg, #ffdf7e, #ffca28);`
Text on this colour	`background-color: #ffca28; color: #000;`

Similar named colours

Distance is measured in OKLab, scaled by 100; under about 2 is hard to tell apart side by side.

Convert #FFCA28 to other formats · Build a palette from it · Check contrast · All named colours

Colour names from CSS Color Module Level 4. Palette values from the Tailwind CSS v3 default palette (MIT licence) and the Material Design 2014 colour palette as published in Material Design Lite (Apache License 2.0). All other values are calculated from the hex code.