#31B840#31B840

#31B840 is a light, vivid green. Relative luminance 0.353; OKLCH L 68.7% C 0.197 H 144.5°. Best body text is #000000 at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#31B840
RGB	rgb(49, 184, 64)
HSL	hsl(127, 58%, 46%)
HSV	hsv(127, 73%, 72%)
CMYK	cmyk(73.4%, 0%, 65.2%, 27.8%)
CIE-LAB	lab(65.98, -59.33, 49.22)
CIE-LCH	lch(65.98, 77.09, 140.32°)
OKLab	oklab(68.71% -0.1604 0.1142)
OKLCH	oklch(68.71% 0.197 144.5)
XYZ	xyz(19.3312, 35.3019, 10.6447)
Luminance	0.3530 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B840 #B831A9

analogous

#65B831 #31B840 #31B883

triadic

#31B840 #4031B8 #B84031

tetradic

#31B840 #3165B8 #B831A9 #B88331

square

#31B840 #3165B8 #B831A9 #B88331

split-complementary

#31B840 #8331B8 #B83165

monochromatic

#17571E #24882F #31B840 #55D262 #85DE8F

Accessibility & contrast

On white

2.61

#31B840 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.06

#31B840 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B840

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B840	#FFFFFF	#000000	##000000
##31B840	1.00	2.61	8.06	8.06
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.06	21.00	1.00	1.00
##000000	8.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBA731

Deuteranopia (green-blind)

#AC9C4B

Tritanopia (blue-blind)

#00B39F

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #31b840;
/* rgb */ color: rgb(49, 184, 64);
/* oklch */ color: oklch(68.7% 0.197 144.5);

Tailwind

colors: {
  custom: {
    50: '#7ece7a',
    500: '#31b840',
    950: '#000000',
  },
}

SCSS

$custom: #31b840;
$custom-light: #7ece7a;
$custom-dark: #000000;

JSON

{
  "hex": "#31b840",
  "rgb": {
    "r": 49,
    "g": 184,
    "b": 64
  },
  "hsl": {
    "h": 126.667,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.68714,
    "c": 0.19688,
    "h": 144.5
  },
  "luminance": 0.35304
}

Semantic roles & 50–950 ramp

primary

#31B840

secondary

#C87DC0

accent

#47D0E1

background

#F8FCF7

surface

#F0F9EE

border

#CBD2C9

text

#0B1409

muted

#7C827B

Preview Lab

Preview with #31B840

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

Preview Lab → · Contrast checker → · Palette generator →