#31B040#31B040

#31B040 is a light, vivid green. Relative luminance 0.321; OKLCH L 66.6% C 0.187 H 144.8°. Best body text is #000000 at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#31B040
RGB	rgb(49, 176, 64)
HSL	hsl(127, 56%, 44%)
HSV	hsv(127, 72%, 69%)
CMYK	cmyk(72.2%, 0%, 63.6%, 31%)
CIE-LAB	lab(63.40, -56.64, 46.35)
CIE-LCH	lch(63.40, 73.18, 140.71°)
OKLab	oklab(66.57% -0.1531 0.1081)
OKLCH	oklch(66.57% 0.187 144.8)
XYZ	xyz(17.7162, 32.0718, 10.1063)
Luminance	0.3207 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B040 #B031A1

analogous

#62B031 #31B040 #31B080

triadic

#31B040 #4031B0 #B04031

tetradic

#31B040 #3162B0 #B031A1 #B08031

square

#31B040 #3162B0 #B031A1 #B08031

split-complementary

#31B040 #8031B0 #B03162

monochromatic

#16501D #24802F #31B040 #50CE5F #80DC8B

Accessibility & contrast

On white

2.83

#31B040 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.41

#31B040 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B040

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B040	#FFFFFF	#000000	##000000
##31B040	1.00	2.83	7.41	7.41
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.41	21.00	1.00	1.00
##000000	7.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3A033

Deuteranopia (green-blind)

#A4964A

Tritanopia (blue-blind)

#00AB98

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #31b040;
/* rgb */ color: rgb(49, 176, 64);
/* oklch */ color: oklch(66.6% 0.187 144.8);

Tailwind

colors: {
  custom: {
    50: '#7cc979',
    500: '#31b040',
    950: '#000000',
  },
}

SCSS

$custom: #31b040;
$custom-light: #7cc979;
$custom-dark: #000000;

JSON

{
  "hex": "#31b040",
  "rgb": {
    "r": 49,
    "g": 176,
    "b": 64
  },
  "hsl": {
    "h": 127.087,
    "s": 56.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.66574,
    "c": 0.18739,
    "h": 144.8
  },
  "luminance": 0.32074
}

Semantic roles & 50–950 ramp

primary

#31B040

secondary

#C578BC

accent

#48CEE0

background

#F8FCF7

surface

#EFF8EE

border

#CAD1C9

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #31B040

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

Preview Lab → · Contrast checker → · Palette generator →