#288B9C#288B9C

#288B9C is a mid, moderate teal. Relative luminance 0.213; OKLCH L 58.9% C 0.091 H 211.7°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#288B9C
RGB	rgb(40, 139, 156)
HSL	hsl(189, 59%, 38%)
HSV	hsv(189, 74%, 61%)
CMYK	cmyk(74.4%, 10.9%, 0%, 38.8%)
CIE-LAB	lab(53.29, -21.99, -17.16)
CIE-LCH	lch(53.29, 27.89, 217.96°)
OKLab	oklab(58.87% -0.0774 -0.0478)
OKLCH	oklch(58.87% 0.091 211.7)
XYZ	xyz(16.1059, 21.3147, 34.7114)
Luminance	0.2132 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B9C #9C3928

analogous

#289C73 #288B9C #28519C

triadic

#288B9C #9C288B #8B9C28

tetradic

#288B9C #73289C #9C3928 #519C28

square

#288B9C #73289C #9C3928 #519C28

split-complementary

#288B9C #9C2851 #9C7328

monochromatic

#0F343B #1C606B #288B9C #36B5CB #67C7D8

Accessibility & contrast

On white

3.99

#288B9C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#288B9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B9C

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B9C	#FFFFFF	#000000	##000000
##288B9C	1.00	3.99	5.26	5.26
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E869D

Deuteranopia (green-blind)

#6D7A9C

Tritanopia (blue-blind)

#009290

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #288b9c;
/* rgb */ color: rgb(40, 139, 156);
/* oklch */ color: oklch(58.9% 0.091 211.7);

Tailwind

colors: {
  custom: {
    50: '#74adb9',
    500: '#288b9c',
    950: '#000000',
  },
}

SCSS

$custom: #288b9c;
$custom-light: #74adb9;
$custom-dark: #000000;

JSON

{
  "hex": "#288b9c",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 156
  },
  "hsl": {
    "h": 188.793,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.58873,
    "c": 0.09098,
    "h": 211.7
  },
  "luminance": 0.21317
}

Semantic roles & 50–950 ramp

primary

#288B9C

secondary

#BE6F62

accent

#5C45E2

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288B9C

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

Preview Lab → · Contrast checker → · Palette generator →