#1F643B#1F643B

#1F643B is a dark, moderate green. Relative luminance 0.097; OKLCH L 44.9% C 0.096 H 153.6°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#1F643B
RGB	rgb(31, 100, 59)
HSL	hsl(144, 53%, 26%)
HSV	hsv(144, 69%, 39%)
CMYK	cmyk(69%, 0%, 41%, 60.8%)
CIE-LAB	lab(37.34, -31.80, 17.14)
CIE-LCH	lch(37.34, 36.12, 151.68°)
OKLab	oklab(44.89% -0.086 0.0428)
OKLCH	oklch(44.89% 0.096 153.6)
XYZ	xyz(5.9112, 9.7208, 5.7016)
Luminance	0.0972 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F643B #641F48

analogous

#25641F #1F643B #1F645D

triadic

#1F643B #3B1F64 #643B1F

tetradic

#1F643B #1F2564 #641F48 #645D1F

square

#1F643B #1F2564 #641F48 #645D1F

split-complementary

#1F643B #5D1F64 #641F25

monochromatic

#07170E #11351F #1F643B #2D9357 #3CC172

Accessibility & contrast

On white

7.13

#1F643B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#1F643B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F643B

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F643B	#FFFFFF	#000000	##FFFFFF
##1F643B	1.00	7.13	2.94	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645C38

Deuteranopia (green-blind)

#5B553E

Tritanopia (blue-blind)

#00635A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1f643b;
/* rgb */ color: rgb(31, 100, 59);
/* oklch */ color: oklch(44.9% 0.096 153.6);

Tailwind

colors: {
  custom: {
    50: '#649171',
    500: '#1f643b',
    950: '#000000',
  },
}

SCSS

$custom: #1f643b;
$custom-light: #649171;
$custom-dark: #000000;

JSON

{
  "hex": "#1f643b",
  "rgb": {
    "r": 31,
    "g": 100,
    "b": 59
  },
  "hsl": {
    "h": 144.348,
    "s": 52.672,
    "l": 25.686
  },
  "oklch": {
    "l": 0.4489,
    "c": 0.09603,
    "h": 153.6
  },
  "luminance": 0.09721
}

Semantic roles & 50–950 ramp

primary

#1F643B

secondary

#984677

accent

#4CA2DC

background

#F6F8F6

surface

#EBF0EC

border

#C6CBC7

text

#060D07

muted

#7A7D7A

Preview Lab

Preview with #1F643B

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

Preview Lab → · Contrast checker → · Palette generator →