#A1CA37#A1CA37

#A1CA37 is a light, vivid yellow-green. Relative luminance 0.501; OKLCH L 78.3% C 0.174 H 124.2°. Best body text is #000000 at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#A1CA37
RGB	rgb(161, 202, 55)
HSL	hsl(77, 58%, 50%)
HSV	hsv(77, 73%, 79%)
CMYK	cmyk(20.3%, 0%, 72.8%, 20.8%)
CIE-LAB	lab(76.13, -33.64, 64.69)
CIE-LCH	lch(76.13, 72.91, 117.48°)
OKLab	oklab(78.27% -0.0978 0.1441)
OKLCH	oklch(78.27% 0.174 124.2)
XYZ	xyz(36.5084, 50.0936, 11.3593)
Luminance	0.5009 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1CA37 #6037CA

analogous

#CAAA37 #A1CA37 #57CA37

triadic

#A1CA37 #37A1CA #CA37A1

tetradic

#A1CA37 #37CAAA #6037CA #CA3757

square

#A1CA37 #37CAAA #6037CA #CA3757

split-complementary

#A1CA37 #3757CA #AA37CA

monochromatic

#556A1C #7B9B29 #A1CA37 #B8D767 #CEE498

Accessibility & contrast

On white

1.91

#A1CA37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.02

#A1CA37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A1CA37

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1CA37	#FFFFFF	#000000	##000000
##A1CA37	1.00	1.91	11.02	11.02
#FFFFFF	1.91	1.00	21.00	21.00
#000000	11.02	21.00	1.00	1.00
##000000	11.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BD1A

Deuteranopia (green-blind)

#D0BB44

Tritanopia (blue-blind)

#A9C0AE

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #a1ca37;
/* rgb */ color: rgb(161, 202, 55);
/* oklch */ color: oklch(78.3% 0.174 124.2);

Tailwind

colors: {
  custom: {
    50: '#c1da78',
    500: '#a1ca37',
    950: '#000000',
  },
}

SCSS

$custom: #a1ca37;
$custom-light: #c1da78;
$custom-dark: #000000;

JSON

{
  "hex": "#a1ca37",
  "rgb": {
    "r": 161,
    "g": 202,
    "b": 55
  },
  "hsl": {
    "h": 76.735,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.78275,
    "c": 0.17412,
    "h": 124.2
  },
  "luminance": 0.50094
}

Semantic roles & 50–950 ramp

primary

#A1CA37

secondary

#443174

accent

#46E172

background

#FDFEFB

surface

#F9FBF1

border

#D2D4CB

text

#131409

muted

#82837D

Preview Lab

Preview with #A1CA37

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

Preview Lab → · Contrast checker → · Palette generator →