#A1B421#A1B421

#A1B421 is a light, vivid yellow. Relative luminance 0.403; OKLCH L 73.1% C 0.160 H 117.3°. Best body text is #000000 at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#A1B421
RGB	rgb(161, 180, 33)
HSL	hsl(68, 69%, 42%)
HSV	hsv(68, 82%, 71%)
CMYK	cmyk(10.6%, 0%, 81.7%, 29.4%)
CIE-LAB	lab(69.70, -24.15, 65.51)
CIE-LCH	lch(69.70, 69.82, 110.24°)
OKLab	oklab(73.06% -0.0734 0.1422)
OKLCH	oklch(73.06% 0.16 117.3)
XYZ	xyz(31.2945, 40.3298, 7.5744)
Luminance	0.4033 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1B421 #3421B4

analogous

#B47E21 #A1B421 #58B421

triadic

#A1B421 #21A1B4 #B421A1

tetradic

#A1B421 #21B47E #3421B4 #B42158

square

#A1B421 #21B47E #3421B4 #B42158

split-complementary

#A1B421 #2158B4 #7E21B4

monochromatic

#444D0E #738018 #A1B421 #C5DA38 #D4E46B

Accessibility & contrast

On white

2.32

#A1B421 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.07

#A1B421 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A1B421

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1B421	#FFFFFF	#000000	##000000
##A1B421	1.00	2.32	9.07	9.07
#FFFFFF	2.32	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)

#BFAB30

Tritanopia (blue-blind)

#ABA99A

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #a1b421;
/* rgb */ color: rgb(161, 180, 33);
/* oklch */ color: oklch(73.1% 0.160 117.3);

Tailwind

colors: {
  custom: {
    50: '#c1ca6b',
    500: '#a1b421',
    950: '#000000',
  },
}

SCSS

$custom: #a1b421;
$custom-light: #c1ca6b;
$custom-dark: #000000;

JSON

{
  "hex": "#a1b421",
  "rgb": {
    "r": 161,
    "g": 180,
    "b": 33
  },
  "hsl": {
    "h": 67.755,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.73059,
    "c": 0.15999,
    "h": 117.3
  },
  "luminance": 0.40329
}

Semantic roles & 50–950 ramp

primary

#A1B421

secondary

#7467CA

accent

#3CEC53

background

#FCFCF6

surface

#F8F8EC

border

#D1D1C7

text

#131307

muted

#82827A

Preview Lab

Preview with #A1B421

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

Preview Lab → · Contrast checker → · Palette generator →