#31B233#31B233

#31B233 is a light, vivid green. Relative luminance 0.327; OKLCH L 67.0% C 0.199 H 143.1°. Best body text is #000000 at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#31B233
RGB	rgb(49, 178, 51)
HSL	hsl(121, 57%, 45%)
HSV	hsv(121, 72%, 70%)
CMYK	cmyk(72.5%, 0%, 71.3%, 30.2%)
CIE-LAB	lab(63.94, -58.60, 52.31)
CIE-LCH	lch(63.94, 78.56, 138.24°)
OKLab	oklab(66.99% -0.159 0.1192)
OKLCH	oklch(66.99% 0.199 143.1)
XYZ	xyz(17.7835, 32.7308, 8.5118)
Luminance	0.3273 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B233 #B231B0

analogous

#70B231 #31B233 #31B274

triadic

#31B233 #3331B2 #B23331

tetradic

#31B233 #3170B2 #B231B0 #B27431

square

#31B233 #3170B2 #B231B0 #B27431

split-complementary

#31B233 #7431B2 #B23170

monochromatic

#175218 #248225 #31B233 #51CF53 #81DC82

Accessibility & contrast

On white

2.78

#31B233 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.55

#31B233 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B233

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B233	#FFFFFF	#000000	##000000
##31B233	1.00	2.78	7.55	7.55
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.55	21.00	1.00	1.00
##000000	7.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A11E

Deuteranopia (green-blind)

#A79740

Tritanopia (blue-blind)

#00AD99

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #31b233;
/* rgb */ color: rgb(49, 178, 51);
/* oklch */ color: oklch(67.0% 0.199 143.1);

Tailwind

colors: {
  custom: {
    50: '#7dca72',
    500: '#31b233',
    950: '#000000',
  },
}

SCSS

$custom: #31b233;
$custom-light: #7dca72;
$custom-dark: #000000;

JSON

{
  "hex": "#31b233",
  "rgb": {
    "r": 49,
    "g": 178,
    "b": 51
  },
  "hsl": {
    "h": 120.93,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.66988,
    "c": 0.19873,
    "h": 143.1
  },
  "luminance": 0.32733
}

Semantic roles & 50–950 ramp

primary

#31B233

secondary

#C579C4

accent

#48DEE0

background

#F8FCF7

surface

#EFF9ED

border

#CAD2C8

text

#0B1308

muted

#7C827B

Preview Lab

Preview with #31B233

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

Preview Lab → · Contrast checker → · Palette generator →