#51B671#51B671

#51B671 is a light, vivid green. Relative luminance 0.364; OKLCH L 69.8% C 0.139 H 151.6°. Best body text is #000000 at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#51B671
RGB	rgb(81, 182, 113)
HSL	hsl(139, 41%, 52%)
HSV	hsv(139, 55%, 71%)
CMYK	cmyk(55.5%, 0%, 37.9%, 28.6%)
CIE-LAB	lab(66.82, -44.96, 26.46)
CIE-LCH	lch(66.82, 52.17, 149.52°)
OKLab	oklab(69.85% -0.1219 0.0661)
OKLCH	oklch(69.85% 0.139 151.6)
XYZ	xyz(23.1002, 36.3954, 21.4273)
Luminance	0.3640 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B671 #B65196

analogous

#64B651 #51B671 #51B6A4

triadic

#51B671 #7151B6 #B67151

tetradic

#51B671 #5164B6 #B65196 #B6A451

square

#51B671 #5164B6 #B65196 #B6A451

split-complementary

#51B671 #A451B6 #B65164

monochromatic

#2A633C #3C8E56 #51B671 #7CC894 #A7DAB7

Accessibility & contrast

On white

2.54

#51B671 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.28

#51B671 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B671

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B671	#FFFFFF	#000000	##000000
##51B671	1.00	2.54	8.28	8.28
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.28	21.00	1.00	1.00
##000000	8.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A86C

Deuteranopia (green-blind)

#A99F75

Tritanopia (blue-blind)

#37B3A5

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #51b671;
/* rgb */ color: rgb(81, 182, 113);
/* oklch */ color: oklch(69.8% 0.139 151.6);

Tailwind

colors: {
  custom: {
    50: '#8acd9a',
    500: '#51b671',
    950: '#000000',
  },
}

SCSS

$custom: #51b671;
$custom-light: #8acd9a;
$custom-dark: #000000;

JSON

{
  "hex": "#51b671",
  "rgb": {
    "r": 81,
    "g": 182,
    "b": 113
  },
  "hsl": {
    "h": 139.01,
    "s": 40.891,
    "l": 51.569
  },
  "oklch": {
    "l": 0.69848,
    "c": 0.13865,
    "h": 151.6
  },
  "luminance": 0.36397
}

Semantic roles & 50–950 ramp

primary

#51B671

secondary

#C89BBA

accent

#57AAD1

background

#F8FCF9

surface

#F0F9F2

border

#CBD2CC

text

#0C130E

muted

#7D827E

Preview Lab

Preview with #51B671

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

Preview Lab → · Contrast checker → · Palette generator →