#51D989#51D989

#51D989 is a light, vivid green. Relative luminance 0.532; OKLCH L 79.1% C 0.165 H 154.1°. Best body text is #000000 at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#51D989
RGB	rgb(81, 217, 137)
HSL	hsl(145, 64%, 58%)
HSV	hsv(145, 63%, 85%)
CMYK	cmyk(62.7%, 0%, 36.9%, 14.9%)
CIE-LAB	lab(77.98, -54.66, 28.78)
CIE-LCH	lch(77.98, 61.78, 152.23°)
OKLab	oklab(79.14% -0.148 0.072)
OKLCH	oklch(79.14% 0.165 154.1)
XYZ	xyz(32.7188, 53.1778, 32.2021)
Luminance	0.5318 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D989 #D951A1

analogous

#5DD951 #51D989 #51D9CD

triadic

#51D989 #8951D9 #D98951

tetradic

#51D989 #515DD9 #D951A1 #D9CD51

square

#51D989 #515DD9 #D951A1 #D9CD51

split-complementary

#51D989 #CD51D9 #D9515D

monochromatic

#1F904E #2AC269 #51D989 #83E4AB #B5EFCD

Accessibility & contrast

On white

1.80

#51D989 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.64

#51D989 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D989

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D989	#FFFFFF	#000000	##000000
##51D989	1.00	1.80	11.64	11.64
#FFFFFF	1.80	1.00	21.00	21.00
#000000	11.64	21.00	1.00	1.00
##000000	11.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9C884

Deuteranopia (green-blind)

#C7BC8E

Tritanopia (blue-blind)

#10D7C5

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #51d989;
/* rgb */ color: rgb(81, 217, 137);
/* oklch */ color: oklch(79.1% 0.165 154.1);

Tailwind

colors: {
  custom: {
    50: '#8fe6ac',
    500: '#51d989',
    950: '#000000',
  },
}

SCSS

$custom: #51d989;
$custom-light: #8fe6ac;
$custom-dark: #000000;

JSON

{
  "hex": "#51d989",
  "rgb": {
    "r": 81,
    "g": 217,
    "b": 137
  },
  "hsl": {
    "h": 144.706,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.79137,
    "c": 0.1646,
    "h": 154.1
  },
  "luminance": 0.53181
}

Semantic roles & 50–950 ramp

primary

#51D989

secondary

#95396F

accent

#41A3E7

background

#FCFEFD

surface

#F5FCF7

border

#CFD5D0

text

#0E1610

muted

#7F8481

Preview Lab

Preview with #51D989

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

Preview Lab → · Contrast checker → · Palette generator →