#31B561#31B561

#31B561 is a light, vivid green. Relative luminance 0.346; OKLCH L 68.4% C 0.165 H 150.9°. Best body text is #000000 at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#31B561
RGB	rgb(49, 181, 97)
HSL	hsl(142, 57%, 45%)
HSV	hsv(142, 73%, 71%)
CMYK	cmyk(72.9%, 0%, 46.4%, 29%)
CIE-LAB	lab(65.41, -53.76, 32.82)
CIE-LCH	lch(65.41, 62.98, 148.60°)
OKLab	oklab(68.36% -0.1446 0.0804)
OKLCH	oklch(68.36% 0.165 150.9)
XYZ	xyz(19.9465, 34.5615, 16.9268)
Luminance	0.3456 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B561 #B53185

analogous

#43B531 #31B561 #31B5A3

triadic

#31B561 #6131B5 #B56131

tetradic

#31B561 #3143B5 #B53185 #B5A331

square

#31B561 #3143B5 #B53185 #B5A331

split-complementary

#31B561 #A331B5 #B53143

monochromatic

#17552D #248547 #31B561 #53D080 #83DDA4

Accessibility & contrast

On white

2.65

#31B561 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.91

#31B561 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B561

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B561	#FFFFFF	#000000	##000000
##31B561	1.00	2.65	7.91	7.91
#FFFFFF	2.65	1.00	21.00	21.00
#000000	7.91	21.00	1.00	1.00
##000000	7.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A55A

Deuteranopia (green-blind)

#A69A67

Tritanopia (blue-blind)

#00B2A1

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #31b561;
/* rgb */ color: rgb(49, 181, 97);
/* oklch */ color: oklch(68.4% 0.165 150.9);

Tailwind

colors: {
  custom: {
    50: '#7ccc8f',
    500: '#31b561',
    950: '#000000',
  },
}

SCSS

$custom: #31b561;
$custom-light: #7ccc8f;
$custom-dark: #000000;

JSON

{
  "hex": "#31b561",
  "rgb": {
    "r": 49,
    "g": 181,
    "b": 97
  },
  "hsl": {
    "h": 141.818,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.68361,
    "c": 0.16549,
    "h": 150.9
  },
  "luminance": 0.34564
}

Semantic roles & 50–950 ramp

primary

#31B561

secondary

#C77BAB

accent

#47A9E1

background

#F8FCF8

surface

#EFF9F0

border

#CAD2CB

text

#0B130C

muted

#7C827D

Preview Lab

Preview with #31B561

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

Preview Lab → · Contrast checker → · Palette generator →