#51A71E#51A71E

#51A71E 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	#51A71E
RGB	rgb(81, 167, 30)
HSL	hsl(98, 70%, 39%)
HSV	hsv(98, 82%, 65%)
CMYK	cmyk(51.5%, 0%, 82%, 34.5%)
CIE-LAB	lab(61.20, -48.61, 57.01)
CIE-LCH	lch(61.20, 74.92, 130.46°)
OKLab	oklab(64.94% -0.1351 0.1258)
OKLCH	oklch(64.94% 0.185 137)
XYZ	xyz(17.4459, 29.4792, 5.9988)
Luminance	0.2948 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A71E #741EA7

analogous

#95A71E #51A71E #1EA72F

triadic

#51A71E #1E51A7 #A71E51

tetradic

#51A71E #1E95A7 #741EA7 #A72F1E

square

#51A71E #1E95A7 #741EA7 #A72F1E

split-complementary

#51A71E #2F1EA7 #A71E95

monochromatic

#1F3F0B #387315 #51A71E #6BD92A #8FE25D

Accessibility & contrast

On white

3.05

#51A71E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.90

#51A71E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A71E

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A71E	#FFFFFF	#000000	##000000
##51A71E	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)

#A2912F

Tritanopia (blue-blind)

#4CA18E

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #51a71e;
/* rgb */ color: rgb(81, 167, 30);
/* oklch */ color: oklch(64.9% 0.185 137.0);

Tailwind

colors: {
  custom: {
    50: '#8bc267',
    500: '#51a71e',
    950: '#000000',
  },
}

SCSS

$custom: #51a71e;
$custom-light: #8bc267;
$custom-dark: #000000;

JSON

{
  "hex": "#51a71e",
  "rgb": {
    "r": 81,
    "g": 167,
    "b": 30
  },
  "hsl": {
    "h": 97.664,
    "s": 69.543,
    "l": 38.627
  },
  "oklch": {
    "l": 0.64944,
    "c": 0.1846,
    "h": 137
  },
  "luminance": 0.29481
}

Semantic roles & 50–950 ramp

primary

#51A71E

secondary

#9E5BC6

accent

#3BECAA

background

#F9FCF6

surface

#F1F8EB

border

#CBD1C6

text

#0D1207

muted

#7E817A

Preview Lab

Preview with #51A71E

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

Preview Lab → · Contrast checker → · Palette generator →