#1B5437#1B5437

#1B5437 is a dark, moderate green. Relative luminance 0.068; OKLCH L 40.0% C 0.077 H 157.6°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#1B5437
RGB	rgb(27, 84, 55)
HSL	hsl(149, 51%, 22%)
HSV	hsv(149, 68%, 33%)
CMYK	cmyk(67.9%, 0%, 34.5%, 67.1%)
CIE-LAB	lab(31.46, -26.25, 11.63)
CIE-LCH	lch(31.46, 28.71, 156.11°)
OKLab	oklab(40% -0.0715 0.0294)
OKLCH	oklch(40% 0.077 157.6)
XYZ	xyz(4.3115, 6.8491, 4.7085)
Luminance	0.0685 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5437 #541B38

analogous

#1C541B #1B5437 #1B5454

triadic

#1B5437 #371B54 #54371B

tetradic

#1B5437 #1B1C54 #541B38 #54541B

square

#1B5437 #1B1C54 #541B38 #54541B

split-complementary

#1B5437 #541B54 #541B1C

monochromatic

#07170F #0C2619 #1B5437 #2A8255 #39B174

Accessibility & contrast

On white

8.86

#1B5437 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1B5437 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5437

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5437	#FFFFFF	#000000	##FFFFFF
##1B5437	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534D35

Deuteranopia (green-blind)

#4C4839

Tritanopia (blue-blind)

#00534C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b5437;
/* rgb */ color: rgb(27, 84, 55);
/* oklch */ color: oklch(40.0% 0.077 157.6);

Tailwind

colors: {
  custom: {
    50: '#5f856e',
    500: '#1b5437',
    950: '#000000',
  },
}

SCSS

$custom: #1b5437;
$custom-light: #5f856e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5437",
  "rgb": {
    "r": 27,
    "g": 84,
    "b": 55
  },
  "hsl": {
    "h": 149.474,
    "s": 51.351,
    "l": 21.765
  },
  "oklch": {
    "l": 0.40003,
    "c": 0.07729,
    "h": 157.6
  },
  "luminance": 0.06849
}

Semantic roles & 50–950 ramp

primary

#1B5437

secondary

#8A4166

accent

#4D95DB

background

#F5F8F6

surface

#E9EFEB

border

#C5CAC6

text

#050B07

muted

#797C7A

Preview Lab

Preview with #1B5437

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

Preview Lab → · Contrast checker → · Palette generator →