#1B4F2B#1B4F2B

#1B4F2B is a dark, moderate green. Relative luminance 0.060; OKLCH L 38.2% C 0.082 H 150.7°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#1B4F2B
RGB	rgb(27, 79, 43)
HSL	hsl(138, 49%, 21%)
HSV	hsv(138, 66%, 31%)
CMYK	cmyk(65.8%, 0%, 45.6%, 69%)
CIE-LAB	lab(29.41, -26.53, 16.26)
CIE-LCH	lch(29.41, 31.11, 148.49°)
OKLab	oklab(38.24% -0.0717 0.0403)
OKLCH	oklch(38.24% 0.082 150.7)
XYZ	xyz(3.6837, 5.9990, 3.2488)
Luminance	0.0600 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4F2B #4F1B3F

analogous

#254F1B #1B4F2B #1B4F45

triadic

#1B4F2B #2B1B4F #4F2B1B

tetradic

#1B4F2B #1B254F #4F1B3F #4F451B

square

#1B4F2B #1B254F #4F1B3F #4F451B

split-complementary

#1B4F2B #451B4F #4F1B25

monochromatic

#08170C #0B2112 #1B4F2B #2B7D44 #3AAA5D

Accessibility & contrast

On white

9.55

#1B4F2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#1B4F2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4F2B

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4F2B	#FFFFFF	#000000	##FFFFFF
##1B4F2B	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4828

Deuteranopia (green-blind)

#49432D

Tritanopia (blue-blind)

#0B4E46

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1b4f2b;
/* rgb */ color: rgb(27, 79, 43);
/* oklch */ color: oklch(38.2% 0.082 150.7);

Tailwind

colors: {
  custom: {
    50: '#5e8164',
    500: '#1b4f2b',
    950: '#000000',
  },
}

SCSS

$custom: #1b4f2b;
$custom-light: #5e8164;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4f2b",
  "rgb": {
    "r": 27,
    "g": 79,
    "b": 43
  },
  "hsl": {
    "h": 138.462,
    "s": 49.057,
    "l": 20.784
  },
  "oklch": {
    "l": 0.3824,
    "c": 0.08225,
    "h": 150.7
  },
  "luminance": 0.05999
}

Semantic roles & 50–950 ramp

primary

#1B4F2B

secondary

#854170

accent

#4FAED9

background

#F5F7F6

surface

#E9EEEB

border

#C5C9C6

text

#050A05

muted

#797C7A

Preview Lab

Preview with #1B4F2B

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

Preview Lab → · Contrast checker → · Palette generator →