#288FA3#288FA3

#288FA3 is a mid, moderate teal. Relative luminance 0.227; OKLCH L 60.2% C 0.095 H 213.8°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#288FA3
RGB	rgb(40, 143, 163)
HSL	hsl(190, 61%, 40%)
HSV	hsv(190, 75%, 64%)
CMYK	cmyk(75.5%, 12.3%, 0%, 36.1%)
CIE-LAB	lab(54.80, -21.79, -18.89)
CIE-LCH	lch(54.80, 28.84, 220.92°)
OKLab	oklab(60.18% -0.0786 -0.0526)
OKLCH	oklch(60.18% 0.095 213.8)
XYZ	xyz(17.3056, 22.7383, 38.1201)
Luminance	0.2274 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288FA3 #A33C28

analogous

#28A379 #288FA3 #2852A3

triadic

#288FA3 #A3288F #8FA328

tetradic

#288FA3 #7928A3 #A33C28 #52A328

square

#288FA3 #7928A3 #A33C28 #52A328

split-complementary

#288FA3 #A32852 #A37928

monochromatic

#103941 #1C6472 #288FA3 #3AB6CF #6BC8DB

Accessibility & contrast

On white

3.79

#288FA3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#288FA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288FA3

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288FA3	#FFFFFF	#000000	##000000
##288FA3	1.00	3.79	5.55	5.55
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#808AA4

Deuteranopia (green-blind)

#707EA3

Tritanopia (blue-blind)

#009795

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #288fa3;
/* rgb */ color: rgb(40, 143, 163);
/* oklch */ color: oklch(60.2% 0.095 213.8);

Tailwind

colors: {
  custom: {
    50: '#75b0be',
    500: '#288fa3',
    950: '#000000',
  },
}

SCSS

$custom: #288fa3;
$custom-light: #75b0be;
$custom-dark: #000000;

JSON

{
  "hex": "#288fa3",
  "rgb": {
    "r": 40,
    "g": 143,
    "b": 163
  },
  "hsl": {
    "h": 189.756,
    "s": 60.591,
    "l": 39.804
  },
  "oklch": {
    "l": 0.60175,
    "c": 0.09458,
    "h": 213.8
  },
  "luminance": 0.2274
}

Semantic roles & 50–950 ramp

primary

#288FA3

secondary

#C17566

accent

#5E44E4

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288FA3

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

Preview Lab → · Contrast checker → · Palette generator →