#51AB2B#51AB2B

#51AB2B is a light, vivid green. Relative luminance 0.310; OKLCH L 66.1% C 0.183 H 138.3°. Best body text is #000000 at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#51AB2B
RGB	rgb(81, 171, 43)
HSL	hsl(102, 60%, 42%)
HSV	hsv(102, 75%, 67%)
CMYK	cmyk(52.6%, 0%, 74.9%, 32.9%)
CIE-LAB	lab(62.55, -49.37, 54.15)
CIE-LCH	lch(62.55, 73.28, 132.36°)
OKLab	oklab(66.07% -0.1364 0.1217)
OKLCH	oklch(66.07% 0.183 138.3)
XYZ	xyz(18.3916, 31.0482, 7.3088)
Luminance	0.3105 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AB2B #852BAB

analogous

#91AB2B #51AB2B #2BAB45

triadic

#51AB2B #2B51AB #AB2B51

tetradic

#51AB2B #2B91AB #852BAB #AB452B

square

#51AB2B #2B91AB #852BAB #AB452B

split-complementary

#51AB2B #452BAB #AB2B91

monochromatic

#234912 #3A7A1F #51AB2B #6DD043 #93DC74

Accessibility & contrast

On white

2.91

#51AB2B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.21

#51AB2B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AB2B

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AB2B	#FFFFFF	#000000	##000000
##51AB2B	1.00	2.91	7.21	7.21
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.21	21.00	1.00	1.00
##000000	7.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B09C11

Deuteranopia (green-blind)

#A59438

Tritanopia (blue-blind)

#4AA592

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #51ab2b;
/* rgb */ color: rgb(81, 171, 43);
/* oklch */ color: oklch(66.1% 0.183 138.3);

Tailwind

colors: {
  custom: {
    50: '#8bc56d',
    500: '#51ab2b',
    950: '#000000',
  },
}

SCSS

$custom: #51ab2b;
$custom-light: #8bc56d;
$custom-dark: #000000;

JSON

{
  "hex": "#51ab2b",
  "rgb": {
    "r": 81,
    "g": 171,
    "b": 43
  },
  "hsl": {
    "h": 102.188,
    "s": 59.813,
    "l": 41.961
  },
  "oklch": {
    "l": 0.66075,
    "c": 0.18279,
    "h": 138.3
  },
  "luminance": 0.3105
}

Semantic roles & 50–950 ramp

primary

#51AB2B

secondary

#AA6EC4

accent

#45E3B4

background

#F9FCF6

surface

#F1F8EC

border

#CBD1C7

text

#0D1308

muted

#7E827B

Preview Lab

Preview with #51AB2B

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

Preview Lab → · Contrast checker → · Palette generator →