#1B643A#1B643A

#1B643A is a dark, moderate green. Relative luminance 0.097; OKLCH L 44.7% C 0.099 H 153.8°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#1B643A
RGB	rgb(27, 100, 58)
HSL	hsl(145, 57%, 25%)
HSV	hsv(145, 73%, 39%)
CMYK	cmyk(73%, 0%, 42%, 60.8%)
CIE-LAB	lab(37.21, -32.82, 17.54)
CIE-LCH	lch(37.21, 37.21, 151.88°)
OKLab	oklab(44.75% -0.0886 0.0437)
OKLCH	oklch(44.75% 0.099 153.8)
XYZ	xyz(5.7724, 9.6522, 5.5610)
Luminance	0.0965 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B643A #641B45

analogous

#21641B #1B643A #1B645E

triadic

#1B643A #3A1B64 #643A1B

tetradic

#1B643A #1B2164 #641B45 #645E1B

square

#1B643A #1B2164 #641B45 #645E1B

split-complementary

#1B643A #5E1B64 #641B21

monochromatic

#07180E #0E341E #1B643A #289456 #35C472

Accessibility & contrast

On white

7.17

#1B643A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#1B643A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B643A

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B643A	#FFFFFF	#000000	##FFFFFF
##1B643A	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645B37

Deuteranopia (green-blind)

#5B553D

Tritanopia (blue-blind)

#006359

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1b643a;
/* rgb */ color: rgb(27, 100, 58);
/* oklch */ color: oklch(44.7% 0.099 153.8);

Tailwind

colors: {
  custom: {
    50: '#629170',
    500: '#1b643a',
    950: '#000000',
  },
}

SCSS

$custom: #1b643a;
$custom-light: #629170;
$custom-dark: #000000;

JSON

{
  "hex": "#1b643a",
  "rgb": {
    "r": 27,
    "g": 100,
    "b": 58
  },
  "hsl": {
    "h": 145.479,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.44749,
    "c": 0.0988,
    "h": 153.8
  },
  "luminance": 0.09653
}

Semantic roles & 50–950 ramp

primary

#1B643A

secondary

#994174

accent

#479FE1

background

#F6F8F6

surface

#EBF0EC

border

#C6CBC7

text

#060D07

muted

#7A7D7A

Preview Lab

Preview with #1B643A

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

Preview Lab → · Contrast checker → · Palette generator →