#A4F251#A4F251

#A4F251 is a very light, highly saturated yellow-green. Relative luminance 0.720; OKLCH L 88.0% C 0.205 H 131.7°. Best body text is #000000 at 15.40:1 contrast (WCAG AA passes).

Color values

HEX	#A4F251
RGB	rgb(164, 242, 81)
HSL	hsl(89, 86%, 63%)
HSV	hsv(89, 67%, 95%)
CMYK	cmyk(32.2%, 0%, 66.5%, 5.1%)
CIE-LAB	lab(87.96, -48.44, 67.25)
CIE-LCH	lch(87.96, 82.88, 125.77°)
OKLab	oklab(87.99% -0.1364 0.1531)
OKLCH	oklch(87.99% 0.205 131.7)
XYZ	xyz(48.5466, 71.9891, 19.1204)
Luminance	0.7199 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

#A9F971

ΔE00 3.34

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4F251 #9F51F2

analogous

#F2EF51 #A4F251 #53F251

triadic

#A4F251 #51A4F2 #F251A4

tetradic

#A4F251 #51F2EF #9F51F2 #F25153

square

#A4F251 #51F2EF #9F51F2 #F25153

split-complementary

#A4F251 #5153F2 #EF51F2

monochromatic

#67BB0E #86EE18 #A4F251 #C2F68A #E0FBC3

Accessibility & contrast

On white

1.36

#A4F251 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.40

#A4F251 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A4F251

15.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4F251	#FFFFFF	#000000	##000000
##A4F251	1.00	1.36	15.40	15.40
#FFFFFF	1.36	1.00	21.00	21.00
#000000	15.40	21.00	1.00	1.00
##000000	15.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FCE03A

Deuteranopia (green-blind)

#F1DB5F

Tritanopia (blue-blind)

#A6E8D1

Achromatopsia (no color)

#DDDDDD

Design tokens & code

CSS

--color: #a4f251;
/* rgb */ color: rgb(164, 242, 81);
/* oklch */ color: oklch(88.0% 0.205 131.7);

Tailwind

colors: {
  custom: {
    50: '#c4f78a',
    500: '#a4f251',
    950: '#000000',
  },
}

SCSS

$custom: #a4f251;
$custom-light: #c4f78a;
$custom-dark: #000000;

JSON

{
  "hex": "#a4f251",
  "rgb": {
    "r": 164,
    "g": 242,
    "b": 81
  },
  "hsl": {
    "h": 89.068,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.87985,
    "c": 0.20501,
    "h": 131.7
  },
  "luminance": 0.71991
}

Semantic roles & 50–950 ramp

primary

#A4F251

secondary

#712EB9

accent

#03E36F

background

#FEFFFC

surface

#FAFEF4

border

#D3D6CE

text

#13170C

muted

#83857F

Preview Lab

Preview with #A4F251

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

Preview Lab → · Contrast checker → · Palette generator →