#288A9B#288A9B

#288A9B is a mid, moderate teal. Relative luminance 0.210; OKLCH L 58.6% C 0.090 H 211.8°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#288A9B
RGB	rgb(40, 138, 155)
HSL	hsl(189, 59%, 38%)
HSV	hsv(189, 74%, 61%)
CMYK	cmyk(74.2%, 11%, 0%, 39.2%)
CIE-LAB	lab(52.94, -21.79, -17.11)
CIE-LCH	lch(52.94, 27.71, 218.14°)
OKLab	oklab(58.58% -0.0768 -0.0476)
OKLCH	oklch(58.58% 0.09 211.8)
XYZ	xyz(15.8774, 20.9928, 34.2192)
Luminance	0.2099 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288A9B #9B3928

analogous

#289B72 #288A9B #28509B

triadic

#288A9B #9B288A #8A9B28

tetradic

#288A9B #72289B #9B3928 #509B28

square

#288A9B #72289B #9B3928 #509B28

split-complementary

#288A9B #9B2850 #9B7228

monochromatic

#0F333A #1B5F6A #288A9B #35B5CB #66C7D7

Accessibility & contrast

On white

4.04

#288A9B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#288A9B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288A9B

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288A9B	#FFFFFF	#000000	##000000
##288A9B	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D859C

Deuteranopia (green-blind)

#6D799B

Tritanopia (blue-blind)

#00918F

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #288a9b;
/* rgb */ color: rgb(40, 138, 155);
/* oklch */ color: oklch(58.6% 0.090 211.8);

Tailwind

colors: {
  custom: {
    50: '#74acb8',
    500: '#288a9b',
    950: '#000000',
  },
}

SCSS

$custom: #288a9b;
$custom-light: #74acb8;
$custom-dark: #000000;

JSON

{
  "hex": "#288a9b",
  "rgb": {
    "r": 40,
    "g": 138,
    "b": 155
  },
  "hsl": {
    "h": 188.87,
    "s": 58.974,
    "l": 38.235
  },
  "oklch": {
    "l": 0.58578,
    "c": 0.0904,
    "h": 211.8
  },
  "luminance": 0.20995
}

Semantic roles & 50–950 ramp

primary

#288A9B

secondary

#BD6F61

accent

#5D46E2

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288A9B

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

Preview Lab → · Contrast checker → · Palette generator →