#A1B01F#A1B01F

#A1B01F is a light, vivid yellow. Relative luminance 0.387; OKLCH L 72.1% C 0.156 H 115.9°. Best body text is #000000 at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#A1B01F
RGB	rgb(161, 176, 31)
HSL	hsl(66, 70%, 41%)
HSV	hsv(66, 82%, 69%)
CMYK	cmyk(8.5%, 0%, 82.4%, 31%)
CIE-LAB	lab(68.55, -22.25, 65.03)
CIE-LCH	lch(68.55, 68.73, 108.89°)
OKLab	oklab(72.13% -0.0683 0.1408)
OKLCH	oklch(72.13% 0.156 115.9)
XYZ	xyz(30.4715, 38.7272, 7.1659)
Luminance	0.3873 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1B01F #2E1FB0

analogous

#B0761F #A1B01F #58B01F

triadic

#A1B01F #1FA1B0 #B01FA1

tetradic

#A1B01F #1FB076 #2E1FB0 #B01F58

square

#A1B01F #1FB076 #2E1FB0 #B01F58

split-complementary

#A1B01F #1F58B0 #761FB0

monochromatic

#42480D #717C16 #A1B01F #C9DB31 #D7E465

Accessibility & contrast

On white

2.40

#A1B01F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.75

#A1B01F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A1B01F

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1B01F	#FFFFFF	#000000	##000000
##A1B01F	1.00	2.40	8.75	8.75
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.75	21.00	1.00	1.00
##000000	8.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDA600

Deuteranopia (green-blind)

#BCA82E

Tritanopia (blue-blind)

#ACA596

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #a1b01f;
/* rgb */ color: rgb(161, 176, 31);
/* oklch */ color: oklch(72.1% 0.156 115.9);

Tailwind

colors: {
  custom: {
    50: '#c1c76a',
    500: '#a1b01f',
    950: '#000000',
  },
}

SCSS

$custom: #a1b01f;
$custom-light: #c1c76a;
$custom-dark: #000000;

JSON

{
  "hex": "#a1b01f",
  "rgb": {
    "r": 161,
    "g": 176,
    "b": 31
  },
  "hsl": {
    "h": 66.207,
    "s": 70.048,
    "l": 40.588
  },
  "oklch": {
    "l": 0.72131,
    "c": 0.15649,
    "h": 115.9
  },
  "luminance": 0.38727
}

Semantic roles & 50–950 ramp

primary

#A1B01F

secondary

#6C62C9

accent

#3BED4D

background

#FCFCF6

surface

#F8F8EC

border

#D1D1C7

text

#131307

muted

#82827A

Preview Lab

Preview with #A1B01F

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

Preview Lab → · Contrast checker → · Palette generator →