#51CA39#51CA39

#51CA39 is a light, highly saturated green. Relative luminance 0.443; OKLCH L 74.2% C 0.211 H 140.7°. Best body text is #000000 at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#51CA39
RGB	rgb(81, 202, 57)
HSL	hsl(110, 58%, 51%)
HSV	hsv(110, 72%, 79%)
CMYK	cmyk(59.9%, 0%, 71.8%, 20.8%)
CIE-LAB	lab(72.42, -59.68, 59.05)
CIE-LCH	lch(72.42, 83.96, 135.30°)
OKLab	oklab(74.25% -0.1634 0.1338)
OKLCH	oklch(74.25% 0.211 140.7)
XYZ	xyz(25.2512, 44.2835, 11.0870)
Luminance	0.4429 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CA39 #B239CA

analogous

#99CA39 #51CA39 #39CA69

triadic

#51CA39 #3951CA #CA3951

tetradic

#51CA39 #3999CA #B239CA #CA6939

square

#51CA39 #3999CA #B239CA #CA6939

split-complementary

#51CA39 #6939CA #CA3999

monochromatic

#2A6C1D #3D9C2A #51CA39 #7BD769 #A6E49A

Accessibility & contrast

On white

2.13

#51CA39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.86

#51CA39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CA39

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CA39	#FFFFFF	#000000	##000000
##51CA39	1.00	2.13	9.86	9.86
#FFFFFF	2.13	1.00	21.00	21.00
#000000	9.86	21.00	1.00	1.00
##000000	9.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CFB820

Deuteranopia (green-blind)

#C0AE48

Tritanopia (blue-blind)

#40C4AE

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #51ca39;
/* rgb */ color: rgb(81, 202, 57);
/* oklch */ color: oklch(74.2% 0.211 140.7);

Tailwind

colors: {
  custom: {
    50: '#8fdb78',
    500: '#51ca39',
    950: '#000000',
  },
}

SCSS

$custom: #51ca39;
$custom-light: #8fdb78;
$custom-dark: #000000;

JSON

{
  "hex": "#51ca39",
  "rgb": {
    "r": 81,
    "g": 202,
    "b": 57
  },
  "hsl": {
    "h": 110.069,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.74247,
    "c": 0.21121,
    "h": 140.7
  },
  "luminance": 0.44286
}

Semantic roles & 50–950 ramp

primary

#51CA39

secondary

#C58FD0

accent

#47E1C7

background

#F9FDF7

surface

#F2FBEE

border

#CCD4C9

text

#0E1509

muted

#7E837B

Preview Lab

Preview with #51CA39

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

Preview Lab → · Contrast checker → · Palette generator →