#31B23B#31B23B

#31B23B is a light, vivid green. Relative luminance 0.328; OKLCH L 67.1% C 0.193 H 144.0°. Best body text is #000000 at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#31B23B
RGB	rgb(49, 178, 59)
HSL	hsl(125, 57%, 45%)
HSV	hsv(125, 72%, 70%)
CMYK	cmyk(72.5%, 0%, 66.9%, 30.2%)
CIE-LAB	lab(64.00, -57.85, 49.17)
CIE-LCH	lch(64.00, 75.92, 139.64°)
OKLab	oklab(67.06% -0.1566 0.1136)
OKLCH	oklch(67.06% 0.193 144)
XYZ	xyz(17.9753, 32.8075, 9.5220)
Luminance	0.3281 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B23B #B231A8

analogous

#68B231 #31B23B #31B27C

triadic

#31B23B #3B31B2 #B23B31

tetradic

#31B23B #3168B2 #B231A8 #B27C31

square

#31B23B #3168B2 #B231A8 #B27C31

split-complementary

#31B23B #7C31B2 #B23168

monochromatic

#17521B #24822B #31B23B #51CF5B #81DC88

Accessibility & contrast

On white

2.78

#31B23B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.56

#31B23B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B23B

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B23B	#FFFFFF	#000000	##000000
##31B23B	1.00	2.78	7.56	7.56
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.56	21.00	1.00	1.00
##000000	7.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A12B

Deuteranopia (green-blind)

#A79746

Tritanopia (blue-blind)

#00AD9A

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #31b23b;
/* rgb */ color: rgb(49, 178, 59);
/* oklch */ color: oklch(67.1% 0.193 144.0);

Tailwind

colors: {
  custom: {
    50: '#7dca76',
    500: '#31b23b',
    950: '#000000',
  },
}

SCSS

$custom: #31b23b;
$custom-light: #7dca76;
$custom-dark: #000000;

JSON

{
  "hex": "#31b23b",
  "rgb": {
    "r": 49,
    "g": 178,
    "b": 59
  },
  "hsl": {
    "h": 124.651,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.67059,
    "c": 0.19341,
    "h": 144
  },
  "luminance": 0.3281
}

Semantic roles & 50–950 ramp

primary

#31B23B

secondary

#C579C0

accent

#48D4E0

background

#F8FCF7

surface

#EFF9ED

border

#CAD2C8

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #31B23B

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

Preview Lab → · Contrast checker → · Palette generator →