#288C9E#288C9E

#288C9E is a mid, moderate teal. Relative luminance 0.217; OKLCH L 59.2% C 0.092 H 212.5°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#288C9E
RGB	rgb(40, 140, 158)
HSL	hsl(189, 60%, 39%)
HSV	hsv(189, 75%, 62%)
CMYK	cmyk(74.7%, 11.4%, 0%, 38%)
CIE-LAB	lab(53.68, -21.86, -17.72)
CIE-LCH	lch(53.68, 28.14, 219.03°)
OKLab	oklab(59.21% -0.0776 -0.0494)
OKLCH	oklch(59.21% 0.092 212.5)
XYZ	xyz(16.4221, 21.6740, 35.6591)
Luminance	0.2168 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288C9E #9E3A28

analogous

#289E75 #288C9E #28519E

triadic

#288C9E #9E288C #8C9E28

tetradic

#288C9E #75289E #9E3A28 #519E28

square

#288C9E #75289E #9E3A28 #519E28

split-complementary

#288C9E #9E2851 #9E7528

monochromatic

#0F353C #1C616D #288C9E #37B6CC #68C7D9

Accessibility & contrast

On white

3.94

#288C9E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#288C9E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288C9E

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288C9E	#FFFFFF	#000000	##000000
##288C9E	1.00	3.94	5.34	5.34
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E879F

Deuteranopia (green-blind)

#6E7B9E

Tritanopia (blue-blind)

#009392

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #288c9e;
/* rgb */ color: rgb(40, 140, 158);
/* oklch */ color: oklch(59.2% 0.092 212.5);

Tailwind

colors: {
  custom: {
    50: '#75aeba',
    500: '#288c9e',
    950: '#000000',
  },
}

SCSS

$custom: #288c9e;
$custom-light: #75aeba;
$custom-dark: #000000;

JSON

{
  "hex": "#288c9e",
  "rgb": {
    "r": 40,
    "g": 140,
    "b": 158
  },
  "hsl": {
    "h": 189.153,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.59209,
    "c": 0.09198,
    "h": 212.5
  },
  "luminance": 0.21676
}

Semantic roles & 50–950 ramp

primary

#288C9E

secondary

#BF7163

accent

#5D45E3

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288C9E

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

Preview Lab → · Contrast checker → · Palette generator →