#288B63#288B63

#288B63 is a mid, moderate teal. Relative luminance 0.198; OKLCH L 57.0% C 0.110 H 162.0°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#288B63
RGB	rgb(40, 139, 99)
HSL	hsl(156, 55%, 35%)
HSV	hsv(156, 71%, 55%)
CMYK	cmyk(71.2%, 0%, 28.8%, 45.5%)
CIE-LAB	lab(51.63, -38.20, 13.36)
CIE-LCH	lch(51.63, 40.47, 160.72°)
OKLab	oklab(56.97% -0.1045 0.034)
OKLCH	oklch(56.97% 0.11 162)
XYZ	xyz(12.3585, 19.8158, 14.9755)
Luminance	0.1982 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B63 #8B2850

analogous

#288B32 #288B63 #28818B

triadic

#288B63 #63288B #8B6328

tetradic

#288B63 #32288B #8B2850 #818B28

square

#288B63 #32288B #8B2850 #818B28

split-complementary

#288B63 #8B2881 #8B3228

monochromatic

#0D2C1F #1A5B41 #288B63 #36BB85 #5DD0A2

Accessibility & contrast

On white

4.23

#288B63 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#288B63 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B63

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B63	#FFFFFF	#000000	##000000
##288B63	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#898161

Deuteranopia (green-blind)

#7C7766

Tritanopia (blue-blind)

#008B80

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #288b63;
/* rgb */ color: rgb(40, 139, 99);
/* oklch */ color: oklch(57.0% 0.110 162.0);

Tailwind

colors: {
  custom: {
    50: '#70ae8f',
    500: '#288b63',
    950: '#000000',
  },
}

SCSS

$custom: #288b63;
$custom-light: #70ae8f;
$custom-dark: #000000;

JSON

{
  "hex": "#288b63",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 99
  },
  "hsl": {
    "h": 155.758,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.56968,
    "c": 0.10993,
    "h": 162
  },
  "luminance": 0.19817
}

Semantic roles & 50–950 ramp

primary

#288B63

secondary

#B6597F

accent

#4986DF

background

#F7FAF8

surface

#EDF4F0

border

#C8CECB

text

#08100C

muted

#7B7F7D

Preview Lab

Preview with #288B63

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

Preview Lab → · Contrast checker → · Palette generator →