#1B5B2D#1B5B2D

#1B5B2D is a dark, moderate green. Relative luminance 0.079; OKLCH L 41.9% C 0.099 H 149.2°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#1B5B2D
RGB	rgb(27, 91, 45)
HSL	hsl(137, 54%, 23%)
HSV	hsv(137, 70%, 36%)
CMYK	cmyk(70.3%, 0%, 50.5%, 64.3%)
CIE-LAB	lab(33.78, -31.50, 20.69)
CIE-LCH	lch(33.78, 37.69, 146.69°)
OKLab	oklab(41.85% -0.0849 0.0506)
OKLCH	oklch(41.85% 0.099 149.2)
XYZ	xyz(4.6664, 7.9042, 3.7618)
Luminance	0.0790 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5B2D #5B1B49

analogous

#295B1B #1B5B2D #1B5B4D

triadic

#1B5B2D #2D1B5B #5B2D1B

tetradic

#1B5B2D #1B295B #5B1B49 #5B4D1B

square

#1B5B2D #1B295B #5B1B49 #5B4D1B

split-complementary

#1B5B2D #4D1B5B #5B1B29

monochromatic

#07180C #0D2C16 #1B5B2D #298A44 #37B95C

Accessibility & contrast

On white

8.14

#1B5B2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1B5B2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5B2D

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5B2D	#FFFFFF	#000000	##FFFFFF
##1B5B2D	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5329

Deuteranopia (green-blind)

#544D30

Tritanopia (blue-blind)

#035950

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1b5b2d;
/* rgb */ color: rgb(27, 91, 45);
/* oklch */ color: oklch(41.9% 0.099 149.2);

Tailwind

colors: {
  custom: {
    50: '#608a67',
    500: '#1b5b2d',
    950: '#000000',
  },
}

SCSS

$custom: #1b5b2d;
$custom-light: #608a67;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5b2d",
  "rgb": {
    "r": 27,
    "g": 91,
    "b": 45
  },
  "hsl": {
    "h": 136.875,
    "s": 54.237,
    "l": 23.137
  },
  "oklch": {
    "l": 0.4185,
    "c": 0.09885,
    "h": 149.2
  },
  "luminance": 0.07905
}

Semantic roles & 50–950 ramp

primary

#1B5B2D

secondary

#91417A

accent

#4AB4DE

background

#F5F8F6

surface

#EAF0EB

border

#C6CBC6

text

#050C06

muted

#797D7A

Preview Lab

Preview with #1B5B2D

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

Preview Lab → · Contrast checker → · Palette generator →