#288D9D#288D9D

#288D9D is a mid, moderate teal. Relative luminance 0.219; OKLCH L 59.4% C 0.092 H 210.5°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#288D9D
RGB	rgb(40, 141, 157)
HSL	hsl(188, 59%, 39%)
HSV	hsv(188, 75%, 62%)
CMYK	cmyk(74.5%, 10.2%, 0%, 38.4%)
CIE-LAB	lab(53.96, -22.71, -16.72)
CIE-LCH	lch(53.96, 28.20, 216.37°)
OKLab	oklab(59.42% -0.0791 -0.0465)
OKLCH	oklch(59.42% 0.092 210.5)
XYZ	xyz(16.4831, 21.9332, 35.2566)
Luminance	0.2193 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288D9D #9D3828

analogous

#289D72 #288D9D #28529D

triadic

#288D9D #9D288D #8D9D28

tetradic

#288D9D #72289D #9D3828 #529D28

square

#288D9D #72289D #9D3828 #529D28

split-complementary

#288D9D #9D2852 #9D7228

monochromatic

#0F353B #1C616C #288D9D #36B7CC #67C9D8

Accessibility & contrast

On white

3.90

#288D9D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#288D9D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288D9D

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288D9D	#FFFFFF	#000000	##000000
##288D9D	1.00	3.90	5.39	5.39
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#80889E

Deuteranopia (green-blind)

#6F7C9D

Tritanopia (blue-blind)

#009492

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #288d9d;
/* rgb */ color: rgb(40, 141, 157);
/* oklch */ color: oklch(59.4% 0.092 210.5);

Tailwind

colors: {
  custom: {
    50: '#74aeba',
    500: '#288d9d',
    950: '#000000',
  },
}

SCSS

$custom: #288d9d;
$custom-light: #74aeba;
$custom-dark: #000000;

JSON

{
  "hex": "#288d9d",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 157
  },
  "hsl": {
    "h": 188.205,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.5942,
    "c": 0.09175,
    "h": 210.5
  },
  "luminance": 0.21935
}

Semantic roles & 50–950 ramp

primary

#288D9D

secondary

#BE6F62

accent

#5B45E3

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288D9D

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

Preview Lab → · Contrast checker → · Palette generator →