#51A71D#51A71D

#51A71D is a light, vivid yellow-green. Relative luminance 0.295; OKLCH L 64.9% C 0.185 H 137.0°. Best body text is #000000 at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#51A71D
RGB	rgb(81, 167, 29)
HSL	hsl(97, 70%, 38%)
HSV	hsv(97, 83%, 65%)
CMYK	cmyk(51.5%, 0%, 82.6%, 34.5%)
CIE-LAB	lab(61.20, -48.66, 57.28)
CIE-LCH	lch(61.20, 75.16, 130.35°)
OKLab	oklab(64.94% -0.1353 0.1262)
OKLCH	oklch(64.94% 0.185 137)
XYZ	xyz(17.4333, 29.4742, 5.9326)
Luminance	0.2948 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A71D #731DA7

analogous

#96A71D #51A71D #1DA72E

triadic

#51A71D #1D51A7 #A71D51

tetradic

#51A71D #1D96A7 #731DA7 #A72E1D

square

#51A71D #1D96A7 #731DA7 #A72E1D

split-complementary

#51A71D #2E1DA7 #A71D96

monochromatic

#1E3F0B #387314 #51A71D #6BDA28 #8FE35C

Accessibility & contrast

On white

3.05

#51A71D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.90

#51A71D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A71D

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A71D	#FFFFFF	#000000	##000000
##51A71D	1.00	3.05	6.90	6.90
#FFFFFF	3.05	1.00	21.00	21.00
#000000	6.90	21.00	1.00	1.00
##000000	6.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AD9800

Deuteranopia (green-blind)

#A2912E

Tritanopia (blue-blind)

#4CA18E

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #51a71d;
/* rgb */ color: rgb(81, 167, 29);
/* oklch */ color: oklch(64.9% 0.185 137.0);

Tailwind

colors: {
  custom: {
    50: '#8bc267',
    500: '#51a71d',
    950: '#000000',
  },
}

SCSS

$custom: #51a71d;
$custom-light: #8bc267;
$custom-dark: #000000;

JSON

{
  "hex": "#51a71d",
  "rgb": {
    "r": 81,
    "g": 167,
    "b": 29
  },
  "hsl": {
    "h": 97.391,
    "s": 70.408,
    "l": 38.431
  },
  "oklch": {
    "l": 0.64939,
    "c": 0.18503,
    "h": 137
  },
  "luminance": 0.29475
}

Semantic roles & 50–950 ramp

primary

#51A71D

secondary

#9D59C7

accent

#3BEDAA

background

#F9FCF6

surface

#F1F8EB

border

#CBD1C6

text

#0D1207

muted

#7E817A

Preview Lab

Preview with #51A71D

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

Preview Lab → · Contrast checker → · Palette generator →