#1F641B#1F641B

#1F641B is a dark, vivid green. Relative luminance 0.095; OKLCH L 44.4% C 0.126 H 142.3°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#1F641B
RGB	rgb(31, 100, 27)
HSL	hsl(117, 57%, 25%)
HSV	hsv(117, 73%, 39%)
CMYK	cmyk(69%, 0%, 73%, 60.8%)
CIE-LAB	lab(36.90, -36.76, 33.71)
CIE-LCH	lch(36.90, 49.88, 137.48°)
OKLab	oklab(44.39% -0.1001 0.0772)
OKLCH	oklch(44.39% 0.126 142.3)
XYZ	xyz(5.3198, 9.4842, 2.5870)
Luminance	0.0949 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F641B #601B64

analogous

#44641B #1F641B #1B643B

triadic

#1F641B #1B1F64 #641B1F

tetradic

#1F641B #1B4464 #601B64 #643B1B

square

#1F641B #1B4464 #601B64 #643B1B

split-complementary

#1F641B #3B1B64 #641B44

monochromatic

#071807 #10340E #1F641B #2E9428 #3DC435

Accessibility & contrast

On white

7.25

#1F641B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#1F641B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F641B

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F641B	#FFFFFF	#000000	##FFFFFF
##1F641B	1.00	7.25	2.90	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665A10

Deuteranopia (green-blind)

#5E5522

Tritanopia (blue-blind)

#116155

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1f641b;
/* rgb */ color: rgb(31, 100, 27);
/* oklch */ color: oklch(44.4% 0.126 142.3);

Tailwind

colors: {
  custom: {
    50: '#65915c',
    500: '#1f641b',
    950: '#000000',
  },
}

SCSS

$custom: #1f641b;
$custom-light: #65915c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f641b",
  "rgb": {
    "r": 31,
    "g": 100,
    "b": 27
  },
  "hsl": {
    "h": 116.712,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.44388,
    "c": 0.1264,
    "h": 142.3
  },
  "luminance": 0.09485
}

Semantic roles & 50–950 ramp

primary

#1F641B

secondary

#954199

accent

#47E1D8

background

#F6F9F5

surface

#EBF1E9

border

#C6CBC5

text

#060D04

muted

#7A7E79

Preview Lab

Preview with #1F641B

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

Preview Lab → · Contrast checker → · Palette generator →