#1B643D#1B643D

#1B643D is a dark, moderate green. Relative luminance 0.097; OKLCH L 44.8% C 0.096 H 155.5°. Best body text is #FFFFFF at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#1B643D
RGB	rgb(27, 100, 61)
HSL	hsl(148, 57%, 25%)
HSV	hsv(148, 73%, 39%)
CMYK	cmyk(73%, 0%, 39%, 60.8%)
CIE-LAB	lab(37.27, -32.18, 15.84)
CIE-LCH	lch(37.27, 35.87, 153.79°)
OKLab	oklab(44.82% -0.0871 0.0397)
OKLCH	oklch(44.82% 0.096 155.5)
XYZ	xyz(5.8509, 9.6836, 5.9747)
Luminance	0.0968 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B643D #641B42

analogous

#1E641B #1B643D #1B6461

triadic

#1B643D #3D1B64 #643D1B

tetradic

#1B643D #1B1E64 #641B42 #64611B

square

#1B643D #1B1E64 #641B42 #64611B

split-complementary

#1B643D #611B64 #641B1E

monochromatic

#07180F #0E3420 #1B643D #28945A #35C478

Accessibility & contrast

On white

7.15

#1B643D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#1B643D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B643D

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B643D	#FFFFFF	#000000	##FFFFFF
##1B643D	1.00	7.15	2.94	7.15
#FFFFFF	7.15	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645C3A

Deuteranopia (green-blind)

#5A5540

Tritanopia (blue-blind)

#00635A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1b643d;
/* rgb */ color: rgb(27, 100, 61);
/* oklch */ color: oklch(44.8% 0.096 155.5);

Tailwind

colors: {
  custom: {
    50: '#629173',
    500: '#1b643d',
    950: '#000000',
  },
}

SCSS

$custom: #1b643d;
$custom-light: #629173;
$custom-dark: #000000;

JSON

{
  "hex": "#1b643d",
  "rgb": {
    "r": 27,
    "g": 100,
    "b": 61
  },
  "hsl": {
    "h": 147.945,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.44816,
    "c": 0.0957,
    "h": 155.5
  },
  "luminance": 0.09684
}

Semantic roles & 50–950 ramp

primary

#1B643D

secondary

#994170

accent

#4799E1

background

#F6F8F6

surface

#EBF0EC

border

#C6CBC7

text

#060D08

muted

#7A7D7B

Preview Lab

Preview with #1B643D

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

Preview Lab → · Contrast checker → · Palette generator →