#288C9C#288C9C

#288C9C is a mid, moderate teal. Relative luminance 0.216; OKLCH L 59.1% C 0.091 H 210.6°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#288C9C
RGB	rgb(40, 140, 156)
HSL	hsl(188, 59%, 38%)
HSV	hsv(188, 74%, 61%)
CMYK	cmyk(74.4%, 10.3%, 0%, 38.8%)
CIE-LAB	lab(53.61, -22.51, -16.68)
CIE-LCH	lch(53.61, 28.02, 216.54°)
OKLab	oklab(59.13% -0.0785 -0.0464)
OKLCH	oklch(59.13% 0.091 210.6)
XYZ	xyz(16.2513, 21.6057, 34.7598)
Luminance	0.2161 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288C9C #9C3828

analogous

#289C72 #288C9C #28529C

triadic

#288C9C #9C288C #8C9C28

tetradic

#288C9C #72289C #9C3828 #529C28

square

#288C9C #72289C #9C3828 #529C28

split-complementary

#288C9C #9C2852 #9C7228

monochromatic

#0F353B #1C606B #288C9C #36B7CB #67C8D8

Accessibility & contrast

On white

3.95

#288C9C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#288C9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288C9C

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288C9C	#FFFFFF	#000000	##000000
##288C9C	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F879D

Deuteranopia (green-blind)

#6F7B9C

Tritanopia (blue-blind)

#009391

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #288c9c;
/* rgb */ color: rgb(40, 140, 156);
/* oklch */ color: oklch(59.1% 0.091 210.6);

Tailwind

colors: {
  custom: {
    50: '#74aeb9',
    500: '#288c9c',
    950: '#000000',
  },
}

SCSS

$custom: #288c9c;
$custom-light: #74aeb9;
$custom-dark: #000000;

JSON

{
  "hex": "#288c9c",
  "rgb": {
    "r": 40,
    "g": 140,
    "b": 156
  },
  "hsl": {
    "h": 188.276,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.59126,
    "c": 0.09116,
    "h": 210.6
  },
  "luminance": 0.21608
}

Semantic roles & 50–950 ramp

primary

#288C9C

secondary

#BE6F62

accent

#5B45E2

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288C9C

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

Preview Lab → · Contrast checker → · Palette generator →