#31BF51#31BF51

#31BF51 is a light, vivid green. Relative luminance 0.385; OKLCH L 70.8% C 0.192 H 146.8°. Best body text is #000000 at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#31BF51
RGB	rgb(49, 191, 81)
HSL	hsl(134, 59%, 47%)
HSV	hsv(134, 74%, 75%)
CMYK	cmyk(74.3%, 0%, 57.6%, 25.1%)
CIE-LAB	lab(68.39, -59.67, 44.35)
CIE-LCH	lch(68.39, 74.34, 143.38°)
OKLab	oklab(70.77% -0.1607 0.1053)
OKLCH	oklch(70.77% 0.192 146.8)
XYZ	xyz(21.3810, 38.5062, 14.0886)
Luminance	0.3851 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31BF51 #BF319F

analogous

#58BF31 #31BF51 #31BF98

triadic

#31BF51 #5131BF #BF5131

tetradic

#31BF51 #3158BF #BF319F #BF9831

square

#31BF51 #3158BF #BF319F #BF9831

split-complementary

#31BF51 #9831BF #BF3158

monochromatic

#185E28 #258E3C #31BF51 #59D475 #8AE19D

Accessibility & contrast

On white

2.41

#31BF51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.70

#31BF51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31BF51

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31BF51	#FFFFFF	#000000	##000000
##31BF51	1.00	2.41	8.70	8.70
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.70	21.00	1.00	1.00
##000000	8.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1AE46

Deuteranopia (green-blind)

#B1A25A

Tritanopia (blue-blind)

#00BBA7

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #31bf51;
/* rgb */ color: rgb(49, 191, 81);
/* oklch */ color: oklch(70.8% 0.192 146.8);

Tailwind

colors: {
  custom: {
    50: '#7fd385',
    500: '#31bf51',
    950: '#000000',
  },
}

SCSS

$custom: #31bf51;
$custom-light: #7fd385;
$custom-dark: #000000;

JSON

{
  "hex": "#31bf51",
  "rgb": {
    "r": 49,
    "g": 191,
    "b": 81
  },
  "hsl": {
    "h": 133.521,
    "s": 59.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.70766,
    "c": 0.1921,
    "h": 146.8
  },
  "luminance": 0.38509
}

Semantic roles & 50–950 ramp

primary

#31BF51

secondary

#CB81BA

accent

#45BFE2

background

#F8FDF8

surface

#F0FAEF

border

#CBD3CA

text

#0C140B

muted

#7D837C

Preview Lab

Preview with #31BF51

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

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