#51B41A#51B41A

#51B41A is a light, highly saturated yellow-green. Relative luminance 0.345; OKLCH L 68.3% C 0.201 H 137.7°. Best body text is #000000 at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#51B41A
RGB	rgb(81, 180, 26)
HSL	hsl(99, 75%, 40%)
HSV	hsv(99, 86%, 71%)
CMYK	cmyk(55%, 0%, 85.6%, 29.4%)
CIE-LAB	lab(65.33, -53.66, 61.74)
CIE-LCH	lch(65.33, 81.80, 131.00°)
OKLab	oklab(68.34% -0.1488 0.1352)
OKLCH	oklch(68.34% 0.201 137.7)
XYZ	xyz(19.9004, 34.4648, 6.5808)
Luminance	0.3447 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B41A #7D1AB4

analogous

#9EB41A #51B41A #1AB430

triadic

#51B41A #1A51B4 #B41A51

tetradic

#51B41A #1A9EB4 #7D1AB4 #B4301A

square

#51B41A #1A9EB4 #7D1AB4 #B4301A

split-complementary

#51B41A #301AB4 #B41A9E

monochromatic

#21490B #397F12 #51B41A #6CE02B #91E860

Accessibility & contrast

On white

2.66

#51B41A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.89

#51B41A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B41A

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B41A	#FFFFFF	#000000	##000000
##51B41A	1.00	2.66	7.89	7.89
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.89	21.00	1.00	1.00
##000000	7.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA400

Deuteranopia (green-blind)

#AE9C2F

Tritanopia (blue-blind)

#49AD99

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #51b41a;
/* rgb */ color: rgb(81, 180, 26);
/* oklch */ color: oklch(68.3% 0.201 137.7);

Tailwind

colors: {
  custom: {
    50: '#8dcb67',
    500: '#51b41a',
    950: '#000000',
  },
}

SCSS

$custom: #51b41a;
$custom-light: #8dcb67;
$custom-dark: #000000;

JSON

{
  "hex": "#51b41a",
  "rgb": {
    "r": 81,
    "g": 180,
    "b": 26
  },
  "hsl": {
    "h": 98.571,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.68342,
    "c": 0.20105,
    "h": 137.7
  },
  "luminance": 0.34466
}

Semantic roles & 50–950 ramp

primary

#51B41A

secondary

#A55DCC

accent

#36F1AF

background

#F9FCF6

surface

#F1F9EB

border

#CBD2C6

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #51B41A

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

Preview Lab → · Contrast checker → · Palette generator →