#A1CA31#A1CA31

#A1CA31 is a light, vivid yellow-green. Relative luminance 0.500; OKLCH L 78.2% C 0.177 H 123.9°. Best body text is #000000 at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#A1CA31
RGB	rgb(161, 202, 49)
HSL	hsl(76, 61%, 49%)
HSV	hsv(76, 76%, 79%)
CMYK	cmyk(20.3%, 0%, 75.7%, 20.8%)
CIE-LAB	lab(76.09, -33.95, 66.64)
CIE-LCH	lch(76.09, 74.79, 116.99°)
OKLab	oklab(78.24% -0.0991 0.1472)
OKLCH	oklch(78.24% 0.177 123.9)
XYZ	xyz(36.3733, 50.0396, 10.6475)
Luminance	0.5004 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1CA31 #5A31CA

analogous

#CAA631 #A1CA31 #55CA31

triadic

#A1CA31 #31A1CA #CA31A1

tetradic

#A1CA31 #31CAA6 #5A31CA #CA3155

square

#A1CA31 #31CAA6 #5A31CA #CA3155

split-complementary

#A1CA31 #3155CA #A631CA

monochromatic

#526719 #7A9925 #A1CA31 #B8D860 #CEE491

Accessibility & contrast

On white

1.91

#A1CA31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.01

#A1CA31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A1CA31

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1CA31	#FFFFFF	#000000	##000000
##A1CA31	1.00	1.91	11.01	11.01
#FFFFFF	1.91	1.00	21.00	21.00
#000000	11.01	21.00	1.00	1.00
##000000	11.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6BD08

Deuteranopia (green-blind)

#D0BB40

Tritanopia (blue-blind)

#A9C0AD

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #a1ca31;
/* rgb */ color: rgb(161, 202, 49);
/* oklch */ color: oklch(78.2% 0.177 123.9);

Tailwind

colors: {
  custom: {
    50: '#c1da75',
    500: '#a1ca31',
    950: '#000000',
  },
}

SCSS

$custom: #a1ca31;
$custom-light: #c1da75;
$custom-dark: #000000;

JSON

{
  "hex": "#a1ca31",
  "rgb": {
    "r": 161,
    "g": 202,
    "b": 49
  },
  "hsl": {
    "h": 76.078,
    "s": 60.956,
    "l": 49.216
  },
  "oklch": {
    "l": 0.78238,
    "c": 0.17746,
    "h": 123.9
  },
  "luminance": 0.5004
}

Semantic roles & 50–950 ramp

primary

#A1CA31

secondary

#402E72

accent

#44E46F

background

#FDFEFB

surface

#F9FBF1

border

#D2D4CB

text

#131409

muted

#82837D

Preview Lab

Preview with #A1CA31

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

Preview Lab → · Contrast checker → · Palette generator →