#288B5B#288B5B

#288B5B is a mid, moderate teal. Relative luminance 0.197; OKLCH L 56.8% C 0.117 H 157.7°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#288B5B
RGB	rgb(40, 139, 91)
HSL	hsl(151, 55%, 35%)
HSV	hsv(151, 71%, 55%)
CMYK	cmyk(71.2%, 0%, 34.5%, 45.5%)
CIE-LAB	lab(51.46, -39.99, 17.68)
CIE-LCH	lch(51.46, 43.72, 156.15°)
OKLab	oklab(56.78% -0.1085 0.0446)
OKLCH	oklch(56.78% 0.117 157.7)
XYZ	xyz(11.9949, 19.6703, 13.0601)
Luminance	0.1967 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B5B #8B2858

analogous

#288B2A #288B5B #28898B

triadic

#288B5B #5B288B #8B5B28

tetradic

#288B5B #2A288B #8B2858 #898B28

square

#288B5B #2A288B #8B2858 #898B28

split-complementary

#288B5B #8B2889 #8B2A28

monochromatic

#0D2C1D #1A5B3C #288B5B #36BB7A #5DD098

Accessibility & contrast

On white

4.26

#288B5B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#288B5B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B5B

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B5B	#FFFFFF	#000000	##000000
##288B5B	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A8058

Deuteranopia (green-blind)

#7D775E

Tritanopia (blue-blind)

#008A7E

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #288b5b;
/* rgb */ color: rgb(40, 139, 91);
/* oklch */ color: oklch(56.8% 0.117 157.7);

Tailwind

colors: {
  custom: {
    50: '#70ae89',
    500: '#288b5b',
    950: '#000000',
  },
}

SCSS

$custom: #288b5b;
$custom-light: #70ae89;
$custom-dark: #000000;

JSON

{
  "hex": "#288b5b",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 91
  },
  "hsl": {
    "h": 150.909,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.56777,
    "c": 0.11732,
    "h": 157.7
  },
  "luminance": 0.19672
}

Semantic roles & 50–950 ramp

primary

#288B5B

secondary

#B65986

accent

#4992DF

background

#F7FAF8

surface

#EDF4F0

border

#C8CECB

text

#08100B

muted

#7B7F7C

Preview Lab

Preview with #288B5B

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

Preview Lab → · Contrast checker → · Palette generator →