#A1B428#A1B428

#A1B428 is a light, vivid yellow. Relative luminance 0.404; OKLCH L 73.1% C 0.157 H 117.4°. Best body text is #000000 at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#A1B428
RGB	rgb(161, 180, 40)
HSL	hsl(68, 64%, 43%)
HSV	hsv(68, 78%, 71%)
CMYK	cmyk(10.6%, 0%, 77.8%, 29.4%)
CIE-LAB	lab(69.73, -23.89, 63.55)
CIE-LCH	lch(69.73, 67.89, 110.60°)
OKLab	oklab(73.09% -0.0722 0.1392)
OKLCH	oklch(73.09% 0.157 117.4)
XYZ	xyz(31.4030, 40.3731, 8.1456)
Luminance	0.4037 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1B428 #3B28B4

analogous

#B48128 #A1B428 #5BB428

triadic

#A1B428 #28A1B4 #B428A1

tetradic

#A1B428 #28B481 #3B28B4 #B4285B

square

#A1B428 #28B481 #3B28B4 #B4285B

split-complementary

#A1B428 #285BB4 #8128B4

monochromatic

#475012 #74821D #A1B428 #C2D544 #D2E176

Accessibility & contrast

On white

2.31

#A1B428 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.07

#A1B428 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A1B428

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1B428	#FFFFFF	#000000	##000000
##A1B428	1.00	2.31	9.07	9.07
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.07	21.00	1.00	1.00
##000000	9.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1AA00

Deuteranopia (green-blind)

#BFAB35

Tritanopia (blue-blind)

#ABAA9A

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #a1b428;
/* rgb */ color: rgb(161, 180, 40);
/* oklch */ color: oklch(73.1% 0.157 117.4);

Tailwind

colors: {
  custom: {
    50: '#c0ca6e',
    500: '#a1b428',
    950: '#000000',
  },
}

SCSS

$custom: #a1b428;
$custom-light: #c0ca6e;
$custom-dark: #000000;

JSON

{
  "hex": "#a1b428",
  "rgb": {
    "r": 161,
    "g": 180,
    "b": 40
  },
  "hsl": {
    "h": 68.143,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.73093,
    "c": 0.15677,
    "h": 117.4
  },
  "luminance": 0.40373
}

Semantic roles & 50–950 ramp

primary

#A1B428

secondary

#7C70C8

accent

#41E758

background

#FCFCF7

surface

#F8F8ED

border

#D1D1C8

text

#131308

muted

#82827B

Preview Lab

Preview with #A1B428

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →