#31B740#31B740

#31B740 is a light, vivid green. Relative luminance 0.349; OKLCH L 68.4% C 0.196 H 144.6°. Best body text is #000000 at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#31B740
RGB	rgb(49, 183, 64)
HSL	hsl(127, 58%, 45%)
HSV	hsv(127, 73%, 72%)
CMYK	cmyk(73.2%, 0%, 65%, 28.2%)
CIE-LAB	lab(65.66, -59.00, 48.86)
CIE-LCH	lch(65.66, 76.60, 140.37°)
OKLab	oklab(68.45% -0.1595 0.1134)
OKLCH	oklch(68.45% 0.196 144.6)
XYZ	xyz(19.1242, 34.8879, 10.5757)
Luminance	0.3489 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B740 #B731A8

analogous

#65B731 #31B740 #31B783

triadic

#31B740 #4031B7 #B74031

tetradic

#31B740 #3165B7 #B731A8 #B78331

square

#31B740 #3165B7 #B731A8 #B78331

split-complementary

#31B740 #8331B7 #B73165

monochromatic

#17561E #24872F #31B740 #54D162 #84DE8E

Accessibility & contrast

On white

2.63

#31B740 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.98

#31B740 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B740

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B740	#FFFFFF	#000000	##000000
##31B740	1.00	2.63	7.98	7.98
#FFFFFF	2.63	1.00	21.00	21.00
#000000	7.98	21.00	1.00	1.00
##000000	7.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA631

Deuteranopia (green-blind)

#AB9B4B

Tritanopia (blue-blind)

#00B29E

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #31b740;
/* rgb */ color: rgb(49, 183, 64);
/* oklch */ color: oklch(68.4% 0.196 144.6);

Tailwind

colors: {
  custom: {
    50: '#7dce7a',
    500: '#31b740',
    950: '#000000',
  },
}

SCSS

$custom: #31b740;
$custom-light: #7dce7a;
$custom-dark: #000000;

JSON

{
  "hex": "#31b740",
  "rgb": {
    "r": 49,
    "g": 183,
    "b": 64
  },
  "hsl": {
    "h": 126.716,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.68447,
    "c": 0.19571,
    "h": 144.6
  },
  "luminance": 0.3489
}

Semantic roles & 50–950 ramp

primary

#31B740

secondary

#C87CBF

accent

#47D0E1

background

#F8FCF7

surface

#EFF9EE

border

#CAD2C9

text

#0B1409

muted

#7C827B

Preview Lab

Preview with #31B740

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

Preview Lab → · Contrast checker → · Palette generator →