#51A51F#51A51F

#51A51F is a light, vivid yellow-green. Relative luminance 0.288; OKLCH L 64.4% C 0.182 H 137.0°. Best body text is #000000 at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#51A51F
RGB	rgb(81, 165, 31)
HSL	hsl(98, 68%, 38%)
HSV	hsv(98, 81%, 65%)
CMYK	cmyk(50.9%, 0%, 81.2%, 35.3%)
CIE-LAB	lab(60.57, -47.79, 56.13)
CIE-LCH	lch(60.57, 73.72, 130.41°)
OKLab	oklab(64.42% -0.1328 0.1241)
OKLCH	oklch(64.42% 0.182 137)
XYZ	xyz(17.0953, 28.7573, 5.9459)
Luminance	0.2876 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A51F #731FA5

analogous

#94A51F #51A51F #1FA530

triadic

#51A51F #1F51A5 #A51F51

tetradic

#51A51F #1F94A5 #731FA5 #A5301F

square

#51A51F #1F94A5 #731FA5 #A5301F

split-complementary

#51A51F #301FA5 #A51F94

monochromatic

#1E3E0C #387115 #51A51F #6BD72A #8FE15E

Accessibility & contrast

On white

3.11

#51A51F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.75

#51A51F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A51F

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A51F	#FFFFFF	#000000	##000000
##51A51F	1.00	3.11	6.75	6.75
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.75	21.00	1.00	1.00
##000000	6.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AB9600

Deuteranopia (green-blind)

#A08F2F

Tritanopia (blue-blind)

#4C9F8D

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #51a51f;
/* rgb */ color: rgb(81, 165, 31);
/* oklch */ color: oklch(64.4% 0.182 137.0);

Tailwind

colors: {
  custom: {
    50: '#8ac067',
    500: '#51a51f',
    950: '#000000',
  },
}

SCSS

$custom: #51a51f;
$custom-light: #8ac067;
$custom-dark: #000000;

JSON

{
  "hex": "#51a51f",
  "rgb": {
    "r": 81,
    "g": 165,
    "b": 31
  },
  "hsl": {
    "h": 97.612,
    "s": 68.367,
    "l": 38.431
  },
  "oklch": {
    "l": 0.64422,
    "c": 0.1818,
    "h": 137
  },
  "luminance": 0.28759
}

Semantic roles & 50–950 ramp

primary

#51A51F

secondary

#9D5BC5

accent

#3DEBAA

background

#F9FBF6

surface

#F1F7EB

border

#CBD0C6

text

#0D1207

muted

#7E817A

Preview Lab

Preview with #51A51F

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

Preview Lab → · Contrast checker → · Palette generator →