#31B570#31B570

#31B570 is a light, vivid green. Relative luminance 0.349; OKLCH L 68.6% C 0.152 H 155.4°. Best body text is #000000 at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#31B570
RGB	rgb(49, 181, 112)
HSL	hsl(149, 57%, 45%)
HSV	hsv(149, 73%, 71%)
CMYK	cmyk(72.9%, 0%, 38.1%, 29%)
CIE-LAB	lab(65.65, -51.03, 25.28)
CIE-LCH	lch(65.65, 56.95, 153.65°)
OKLab	oklab(68.64% -0.1378 0.0632)
OKLCH	oklch(68.64% 0.152 155.4)
XYZ	xyz(20.7132, 34.8682, 20.9647)
Luminance	0.3487 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B570 #B53176

analogous

#34B531 #31B570 #31B5B2

triadic

#31B570 #7031B5 #B57031

tetradic

#31B570 #3134B5 #B53176 #B5B231

square

#31B570 #3134B5 #B53176 #B5B231

split-complementary

#31B570 #B231B5 #B53134

monochromatic

#175534 #248552 #31B570 #53D08F #83DDAE

Accessibility & contrast

On white

2.63

#31B570 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.97

#31B570 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B570

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B570	#FFFFFF	#000000	##000000
##31B570	1.00	2.63	7.97	7.97
#FFFFFF	2.63	1.00	21.00	21.00
#000000	7.97	21.00	1.00	1.00
##000000	7.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A66B

Deuteranopia (green-blind)

#A49B75

Tritanopia (blue-blind)

#00B3A4

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #31b570;
/* rgb */ color: rgb(49, 181, 112);
/* oklch */ color: oklch(68.6% 0.152 155.4);

Tailwind

colors: {
  custom: {
    50: '#7ccc99',
    500: '#31b570',
    950: '#000000',
  },
}

SCSS

$custom: #31b570;
$custom-light: #7ccc99;
$custom-dark: #000000;

JSON

{
  "hex": "#31b570",
  "rgb": {
    "r": 49,
    "g": 181,
    "b": 112
  },
  "hsl": {
    "h": 148.636,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.68637,
    "c": 0.15163,
    "h": 155.4
  },
  "luminance": 0.34871
}

Semantic roles & 50–950 ramp

primary

#31B570

secondary

#C77BA3

accent

#4797E1

background

#F8FCF9

surface

#EFF9F2

border

#CAD2CC

text

#0B130E

muted

#7C827E

Preview Lab

Preview with #31B570

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

Preview Lab → · Contrast checker → · Palette generator →