#155B31#155B31

#155B31 is a dark, moderate green. Relative luminance 0.079; OKLCH L 41.8% C 0.097 H 152.4°. Best body text is #FFFFFF at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#155B31
RGB	rgb(21, 91, 49)
HSL	hsl(144, 63%, 22%)
HSV	hsv(144, 77%, 36%)
CMYK	cmyk(76.9%, 0%, 46.2%, 64.3%)
CIE-LAB	lab(33.70, -31.94, 18.21)
CIE-LCH	lch(33.70, 36.76, 150.31°)
OKLab	oklab(41.76% -0.086 0.045)
OKLCH	oklch(41.76% 0.097 152.4)
XYZ	xyz(4.6043, 7.8628, 4.1802)
Luminance	0.0786 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B31 #5B153F

analogous

#1C5B15 #155B31 #155B54

triadic

#155B31 #31155B #5B3115

tetradic

#155B31 #151C5B #5B153F #5B5415

square

#155B31 #151C5B #5B153F #5B5415

split-complementary

#155B31 #54155B #5B151C

monochromatic

#06190D #0A2916 #155B31 #208D4C #2CBE67

Accessibility & contrast

On white

8.16

#155B31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#155B31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B31

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B31	#FFFFFF	#000000	##FFFFFF
##155B31	1.00	8.16	2.57	8.16
#FFFFFF	8.16	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B532E

Deuteranopia (green-blind)

#534D34

Tritanopia (blue-blind)

#005A51

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #155b31;
/* rgb */ color: rgb(21, 91, 49);
/* oklch */ color: oklch(41.8% 0.097 152.4);

Tailwind

colors: {
  custom: {
    50: '#5e8a69',
    500: '#155b31',
    950: '#000000',
  },
}

SCSS

$custom: #155b31;
$custom-light: #5e8a69;
$custom-dark: #000000;

JSON

{
  "hex": "#155b31",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 49
  },
  "hsl": {
    "h": 144,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.41756,
    "c": 0.09709,
    "h": 152.4
  },
  "luminance": 0.07863
}

Semantic roles & 50–950 ramp

primary

#155B31

secondary

#92396F

accent

#42A4E6

background

#F5F8F6

surface

#EAF0EB

border

#C6CBC6

text

#050C06

muted

#797D7A

Preview Lab

Preview with #155B31

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

Preview Lab → · Contrast checker → · Palette generator →