#31B558#31B558

#31B558 is a light, vivid green. Relative luminance 0.344; OKLCH L 68.2% C 0.174 H 148.8°. Best body text is #000000 at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#31B558
RGB	rgb(49, 181, 88)
HSL	hsl(138, 57%, 45%)
HSV	hsv(138, 73%, 71%)
CMYK	cmyk(72.9%, 0%, 51.4%, 29%)
CIE-LAB	lab(65.28, -55.20, 37.21)
CIE-LCH	lch(65.28, 66.57, 146.01°)
OKLab	oklab(68.22% -0.1485 0.09)
OKLCH	oklch(68.22% 0.174 148.8)
XYZ	xyz(19.5504, 34.4031, 14.8407)
Luminance	0.3441 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B558 #B5318E

analogous

#4CB531 #31B558 #31B59A

triadic

#31B558 #5831B5 #B55831

tetradic

#31B558 #314CB5 #B5318E #B59A31

square

#31B558 #314CB5 #B5318E #B59A31

split-complementary

#31B558 #9A31B5 #B5314C

monochromatic

#175529 #248541 #31B558 #53D078 #83DD9E

Accessibility & contrast

On white

2.66

#31B558 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.88

#31B558 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B558

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B558	#FFFFFF	#000000	##000000
##31B558	1.00	2.66	7.88	7.88
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.88	21.00	1.00	1.00
##000000	7.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A550

Deuteranopia (green-blind)

#A79A5F

Tritanopia (blue-blind)

#00B1A0

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #31b558;
/* rgb */ color: rgb(49, 181, 88);
/* oklch */ color: oklch(68.2% 0.174 148.8);

Tailwind

colors: {
  custom: {
    50: '#7ccc89',
    500: '#31b558',
    950: '#000000',
  },
}

SCSS

$custom: #31b558;
$custom-light: #7ccc89;
$custom-dark: #000000;

JSON

{
  "hex": "#31b558",
  "rgb": {
    "r": 49,
    "g": 181,
    "b": 88
  },
  "hsl": {
    "h": 137.727,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.68217,
    "c": 0.17365,
    "h": 148.8
  },
  "luminance": 0.34405
}

Semantic roles & 50–950 ramp

primary

#31B558

secondary

#C77BB0

accent

#47B3E1

background

#F8FCF8

surface

#EFF9F0

border

#CAD2CB

text

#0B130C

muted

#7C827D

Preview Lab

Preview with #31B558

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

Preview Lab → · Contrast checker → · Palette generator →