#1F8F31#1F8F31

#1F8F31 is a mid, vivid green. Relative luminance 0.202; OKLCH L 57.0% C 0.164 H 145.2°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#1F8F31
RGB	rgb(31, 143, 49)
HSL	hsl(130, 64%, 34%)
HSV	hsv(130, 78%, 56%)
CMYK	cmyk(78.3%, 0%, 65.7%, 43.9%)
CIE-LAB	lab(52.01, -49.94, 40.24)
CIE-LCH	lch(52.01, 64.13, 141.14°)
OKLab	oklab(56.98% -0.1347 0.0936)
OKLCH	oklch(56.98% 0.164 145.2)
XYZ	xyz(10.9411, 20.1567, 6.2191)
Luminance	0.2016 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F8F31 #8F1F7D

analogous

#458F1F #1F8F31 #1F8F69

triadic

#1F8F31 #311F8F #8F311F

tetradic

#1F8F31 #1F458F #8F1F7D #8F691F

square

#1F8F31 #1F458F #8F1F7D #8F691F

split-complementary

#1F8F31 #691F8F #8F1F45

monochromatic

#092A0F #145D20 #1F8F31 #2AC142 #4FD966

Accessibility & contrast

On white

4.17

#1F8F31 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#1F8F31 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1F8F31

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F8F31	#FFFFFF	#000000	##000000
##1F8F31	1.00	4.17	5.03	5.03
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#918126

Deuteranopia (green-blind)

#857939

Tritanopia (blue-blind)

#008B7B

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #1f8f31;
/* rgb */ color: rgb(31, 143, 49);
/* oklch */ color: oklch(57.0% 0.164 145.2);

Tailwind

colors: {
  custom: {
    50: '#6fb16d',
    500: '#1f8f31',
    950: '#000000',
  },
}

SCSS

$custom: #1f8f31;
$custom-light: #6fb16d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f8f31",
  "rgb": {
    "r": 31,
    "g": 143,
    "b": 49
  },
  "hsl": {
    "h": 129.643,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.56983,
    "c": 0.16407,
    "h": 145.2
  },
  "luminance": 0.20158
}

Semantic roles & 50–950 ramp

primary

#1F8F31

secondary

#BC4EAA

accent

#40CDE7

background

#F7FBF6

surface

#EDF6EC

border

#C8D0C7

text

#081107

muted

#7B807A

Preview Lab

Preview with #1F8F31

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

Preview Lab → · Contrast checker → · Palette generator →