#1B4B2D#1B4B2D

#1B4B2D is a dark, moderate green. Relative luminance 0.055; OKLCH L 37.1% C 0.073 H 153.3°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#1B4B2D
RGB	rgb(27, 75, 45)
HSL	hsl(143, 47%, 20%)
HSV	hsv(143, 64%, 29%)
CMYK	cmyk(64%, 0%, 40%, 70.6%)
CIE-LAB	lab(27.99, -24.21, 13.16)
CIE-LCH	lch(27.99, 27.55, 151.47°)
OKLab	oklab(37.09% -0.0657 0.033)
OKLCH	oklch(37.09% 0.073 153.3)
XYZ	xyz(3.4415, 5.4543, 3.3535)
Luminance	0.0546 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4B2D #4B1B39

analogous

#214B1B #1B4B2D #1B4B45

triadic

#1B4B2D #2D1B4B #4B2D1B

tetradic

#1B4B2D #1B214B #4B1B39 #4B451B

square

#1B4B2D #1B214B #4B1B39 #4B451B

split-complementary

#1B4B2D #451B4B #4B1B21

monochromatic

#08170D #0B1E12 #1B4B2D #2B7848 #3BA563

Accessibility & contrast

On white

10.04

#1B4B2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#1B4B2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4B2D

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4B2D	#FFFFFF	#000000	##FFFFFF
##1B4B2D	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B452B

Deuteranopia (green-blind)

#44402F

Tritanopia (blue-blind)

#0C4A43

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1b4b2d;
/* rgb */ color: rgb(27, 75, 45);
/* oklch */ color: oklch(37.1% 0.073 153.3);

Tailwind

colors: {
  custom: {
    50: '#5d7e66',
    500: '#1b4b2d',
    950: '#000000',
  },
}

SCSS

$custom: #1b4b2d;
$custom-light: #5d7e66;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4b2d",
  "rgb": {
    "r": 27,
    "g": 75,
    "b": 45
  },
  "hsl": {
    "h": 142.5,
    "s": 47.059,
    "l": 20
  },
  "oklch": {
    "l": 0.37088,
    "c": 0.07347,
    "h": 153.3
  },
  "luminance": 0.05455
}

Semantic roles & 50–950 ramp

primary

#1B4B2D

secondary

#814169

accent

#51A5D7

background

#F5F7F6

surface

#E9EEEB

border

#C5C9C6

text

#040A06

muted

#797C7A

Preview Lab

Preview with #1B4B2D

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

Preview Lab → · Contrast checker → · Palette generator →