#A1CA51#A1CA51

#A1CA51 is a light, vivid yellow-green. Relative luminance 0.504; OKLCH L 78.5% C 0.156 H 125.6°. Best body text is #000000 at 11.08:1 contrast (WCAG AA passes).

Color values

HEX	#A1CA51
RGB	rgb(161, 202, 81)
HSL	hsl(80, 53%, 55%)
HSV	hsv(80, 60%, 79%)
CMYK	cmyk(20.3%, 0%, 59.9%, 20.8%)
CIE-LAB	lab(76.32, -31.86, 54.64)
CIE-LCH	lch(76.32, 63.25, 120.25°)
OKLab	oklab(78.5% -0.0906 0.1265)
OKLCH	oklch(78.5% 0.156 125.6)
XYZ	xyz(37.3038, 50.4118, 15.5481)
Luminance	0.5041 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1CA51 #7A51CA

analogous

#CAB751 #A1CA51 #64CA51

triadic

#A1CA51 #51A1CA #CA51A1

tetradic

#A1CA51 #51CAB7 #7A51CA #CA5164

square

#A1CA51 #51CAB7 #7A51CA #CA5164

split-complementary

#A1CA51 #5164CA #B751CA

monochromatic

#5E7B25 #82AA34 #A1CA51 #BAD880 #D4E7AF

Accessibility & contrast

On white

1.89

#A1CA51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.08

#A1CA51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A1CA51

11.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1CA51	#FFFFFF	#000000	##000000
##A1CA51	1.00	1.89	11.08	11.08
#FFFFFF	1.89	1.00	21.00	21.00
#000000	11.08	21.00	1.00	1.00
##000000	11.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4BE43

Deuteranopia (green-blind)

#CEBC59

Tritanopia (blue-blind)

#A7C1B0

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #a1ca51;
/* rgb */ color: rgb(161, 202, 81);
/* oklch */ color: oklch(78.5% 0.156 125.6);

Tailwind

colors: {
  custom: {
    50: '#bfda86',
    500: '#a1ca51',
    950: '#000000',
  },
}

SCSS

$custom: #a1ca51;
$custom-light: #bfda86;
$custom-dark: #000000;

JSON

{
  "hex": "#a1ca51",
  "rgb": {
    "r": 161,
    "g": 202,
    "b": 81
  },
  "hsl": {
    "h": 80.331,
    "s": 53.304,
    "l": 55.49
  },
  "oklch": {
    "l": 0.78495,
    "c": 0.15556,
    "h": 125.6
  },
  "luminance": 0.50412
}

Semantic roles & 50–950 ramp

primary

#A1CA51

secondary

#543C83

accent

#4BDD7C

background

#FDFEFB

surface

#F9FBF2

border

#D2D4CC

text

#12140B

muted

#82837E

Preview Lab

Preview with #A1CA51

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

Preview Lab → · Contrast checker → · Palette generator →