#1F901A#1F901A

#1F901A is a mid, vivid green. Relative luminance 0.203; OKLCH L 57.1% C 0.180 H 142.4°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#1F901A
RGB	rgb(31, 144, 26)
HSL	hsl(117, 69%, 33%)
HSV	hsv(117, 82%, 56%)
CMYK	cmyk(78.5%, 0%, 81.9%, 43.5%)
CIE-LAB	lab(52.19, -52.30, 49.29)
CIE-LCH	lch(52.19, 71.87, 136.70°)
OKLab	oklab(57.07% -0.1422 0.1096)
OKLCH	oklch(57.07% 0.18 142.4)
XYZ	xyz(10.7241, 20.3111, 4.3323)
Luminance	0.2031 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F901A #8B1A90

analogous

#5A901A #1F901A #1A9050

triadic

#1F901A #1A1F90 #901A1F

tetradic

#1F901A #1A5A90 #8B1A90 #90501A

square

#1F901A #1A5A90 #8B1A90 #90501A

split-complementary

#1F901A #501A90 #901A5A

monochromatic

#092807 #145C11 #1F901A #2AC423 #4DDE47

Accessibility & contrast

On white

4.15

#1F901A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#1F901A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1F901A

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F901A	#FFFFFF	#000000	##000000
##1F901A	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#938200

Deuteranopia (green-blind)

#877929

Tritanopia (blue-blind)

#008B7A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #1f901a;
/* rgb */ color: rgb(31, 144, 26);
/* oklch */ color: oklch(57.1% 0.180 142.4);

Tailwind

colors: {
  custom: {
    50: '#70b261',
    500: '#1f901a',
    950: '#000000',
  },
}

SCSS

$custom: #1f901a;
$custom-light: #70b261;
$custom-dark: #000000;

JSON

{
  "hex": "#1f901a",
  "rgb": {
    "r": 31,
    "g": 144,
    "b": 26
  },
  "hsl": {
    "h": 117.458,
    "s": 69.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.57074,
    "c": 0.17954,
    "h": 142.4
  },
  "luminance": 0.20312
}

Semantic roles & 50–950 ramp

primary

#1F901A

secondary

#BA47BF

accent

#3CECE5

background

#F7FBF6

surface

#EDF6EB

border

#C8D0C6

text

#091105

muted

#7B807A

Preview Lab

Preview with #1F901A

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

Preview Lab → · Contrast checker → · Palette generator →