#31B23F#31B23F

#31B23F is a light, vivid green. Relative luminance 0.329; OKLCH L 67.1% C 0.191 H 144.6°. Best body text is #000000 at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#31B23F
RGB	rgb(49, 178, 63)
HSL	hsl(127, 57%, 45%)
HSV	hsv(127, 72%, 70%)
CMYK	cmyk(72.5%, 0%, 64.6%, 30.2%)
CIE-LAB	lab(64.04, -57.43, 47.50)
CIE-LCH	lch(64.04, 74.52, 140.41°)
OKLab	oklab(67.1% -0.1552 0.1104)
OKLCH	oklch(67.1% 0.191 144.6)
XYZ	xyz(18.0830, 32.8506, 10.0895)
Luminance	0.3285 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B23F #B231A4

analogous

#63B231 #31B23F #31B280

triadic

#31B23F #3F31B2 #B23F31

tetradic

#31B23F #3163B2 #B231A4 #B28031

square

#31B23F #3163B2 #B231A4 #B28031

split-complementary

#31B23F #8031B2 #B23163

monochromatic

#17521D #24822E #31B23F #51CF5F #81DC8B

Accessibility & contrast

On white

2.77

#31B23F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.57

#31B23F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B23F

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B23F	#FFFFFF	#000000	##000000
##31B23F	1.00	2.77	7.57	7.57
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.57	21.00	1.00	1.00
##000000	7.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A131

Deuteranopia (green-blind)

#A69749

Tritanopia (blue-blind)

#00AD9A

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #31b23f;
/* rgb */ color: rgb(49, 178, 63);
/* oklch */ color: oklch(67.1% 0.191 144.6);

Tailwind

colors: {
  custom: {
    50: '#7cca79',
    500: '#31b23f',
    950: '#000000',
  },
}

SCSS

$custom: #31b23f;
$custom-light: #7cca79;
$custom-dark: #000000;

JSON

{
  "hex": "#31b23f",
  "rgb": {
    "r": 49,
    "g": 178,
    "b": 63
  },
  "hsl": {
    "h": 126.512,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.671,
    "c": 0.19052,
    "h": 144.6
  },
  "luminance": 0.32853
}

Semantic roles & 50–950 ramp

primary

#31B23F

secondary

#C579BD

accent

#48D0E0

background

#F8FCF7

surface

#EFF9EE

border

#CAD2C9

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #31B23F

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

Preview Lab → · Contrast checker → · Palette generator →