#288A8B#288A8B

#288A8B is a mid, moderate teal. Relative luminance 0.205; OKLCH L 57.9% C 0.087 H 196.0°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#288A8B
RGB	rgb(40, 138, 139)
HSL	hsl(181, 55%, 35%)
HSV	hsv(181, 71%, 55%)
CMYK	cmyk(71.2%, 0.7%, 0%, 45.5%)
CIE-LAB	lab(52.39, -26.86, -8.67)
CIE-LCH	lch(52.39, 28.23, 197.90°)
OKLab	oklab(57.95% -0.0839 -0.0241)
OKLCH	oklch(57.95% 0.087 196)
XYZ	xyz(14.6216, 20.4904, 27.6055)
Luminance	0.2049 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288A8B #8B2928

analogous

#288B5A #288A8B #28598B

triadic

#288A8B #8B288A #8A8B28

tetradic

#288A8B #5A288B #8B2928 #598B28

square

#288A8B #5A288B #8B2928 #598B28

split-complementary

#288A8B #8B2859 #8B5A28

monochromatic

#0D2C2C #1A5B5B #288A8B #36B9BB #5DCFD0

Accessibility & contrast

On white

4.12

#288A8B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#288A8B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288A8B

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288A8B	#FFFFFF	#000000	##000000
##288A8B	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#81838B

Deuteranopia (green-blind)

#72788C

Tritanopia (blue-blind)

#008F8A

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #288a8b;
/* rgb */ color: rgb(40, 138, 139);
/* oklch */ color: oklch(57.9% 0.087 196.0);

Tailwind

colors: {
  custom: {
    50: '#72acac',
    500: '#288a8b',
    950: '#000000',
  },
}

SCSS

$custom: #288a8b;
$custom-light: #72acac;
$custom-dark: #000000;

JSON

{
  "hex": "#288a8b",
  "rgb": {
    "r": 40,
    "g": 138,
    "b": 139
  },
  "hsl": {
    "h": 180.606,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.57946,
    "c": 0.0873,
    "h": 196
  },
  "luminance": 0.20492
}

Semantic roles & 50–950 ramp

primary

#288A8B

secondary

#B65A59

accent

#4B49DF

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #288A8B

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

Preview Lab → · Contrast checker → · Palette generator →