#A1CA27#A1CA27

#A1CA27 is a light, vivid yellow-green. Relative luminance 0.500; OKLCH L 78.2% C 0.182 H 123.6°. Best body text is #000000 at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#A1CA27
RGB	rgb(161, 202, 39)
HSL	hsl(75, 68%, 47%)
HSV	hsv(75, 81%, 79%)
CMYK	cmyk(20.3%, 0%, 80.7%, 20.8%)
CIE-LAB	lab(76.05, -34.37, 69.51)
CIE-LCH	lch(76.05, 77.55, 116.31°)
OKLab	oklab(78.19% -0.1009 0.1517)
OKLCH	oklch(78.19% 0.182 123.6)
XYZ	xyz(36.1852, 49.9643, 9.6568)
Luminance	0.4996 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1CA27 #5027CA

analogous

#CAA227 #A1CA27 #50CA27

triadic

#A1CA27 #27A1CA #CA27A1

tetradic

#A1CA27 #27CAA2 #5027CA #CA2750

square

#A1CA27 #27CAA2 #5027CA #CA2750

split-complementary

#A1CA27 #2750CA #A227CA

monochromatic

#4F6313 #78971D #A1CA27 #BADD51 #CEE784

Accessibility & contrast

On white

1.91

#A1CA27 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.99

#A1CA27 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A1CA27

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1CA27	#FFFFFF	#000000	##000000
##A1CA27	1.00	1.91	10.99	10.99
#FFFFFF	1.91	1.00	21.00	21.00
#000000	10.99	21.00	1.00	1.00
##000000	10.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6BD00

Deuteranopia (green-blind)

#D1BB39

Tritanopia (blue-blind)

#A9C0AD

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #a1ca27;
/* rgb */ color: rgb(161, 202, 39);
/* oklch */ color: oklch(78.2% 0.182 123.6);

Tailwind

colors: {
  custom: {
    50: '#c1da71',
    500: '#a1ca27',
    950: '#000000',
  },
}

SCSS

$custom: #a1ca27;
$custom-light: #c1da71;
$custom-dark: #000000;

JSON

{
  "hex": "#a1ca27",
  "rgb": {
    "r": 161,
    "g": 202,
    "b": 39
  },
  "hsl": {
    "h": 75.092,
    "s": 67.635,
    "l": 47.255
  },
  "oklch": {
    "l": 0.78186,
    "c": 0.1822,
    "h": 123.6
  },
  "luminance": 0.49965
}

Semantic roles & 50–950 ramp

primary

#A1CA27

secondary

#927CD0

accent

#3DEB69

background

#FCFDF7

surface

#F8FAED

border

#D1D3C8

text

#131409

muted

#82837B

Preview Lab

Preview with #A1CA27

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

Preview Lab → · Contrast checker → · Palette generator →