#288B9E#288B9E

#288B9E is a mid, moderate teal. Relative luminance 0.214; OKLCH L 59.0% C 0.092 H 213.5°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#288B9E
RGB	rgb(40, 139, 158)
HSL	hsl(190, 60%, 39%)
HSV	hsv(190, 75%, 62%)
CMYK	cmyk(74.7%, 12%, 0%, 38%)
CIE-LAB	lab(53.37, -21.33, -18.20)
CIE-LCH	lch(53.37, 28.04, 220.47°)
OKLab	oklab(58.96% -0.0766 -0.0507)
OKLCH	oklch(58.96% 0.092 213.5)
XYZ	xyz(16.2766, 21.3830, 35.6106)
Luminance	0.2139 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B9E #9E3B28

analogous

#289E76 #288B9E #28509E

triadic

#288B9E #9E288B #8B9E28

tetradic

#288B9E #76289E #9E3B28 #509E28

square

#288B9E #76289E #9E3B28 #509E28

split-complementary

#288B9E #9E2850 #9E7628

monochromatic

#0F353C #1C606D #288B9E #37B4CC #68C7D9

Accessibility & contrast

On white

3.98

#288B9E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#288B9E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B9E

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B9E	#FFFFFF	#000000	##000000
##288B9E	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D869F

Deuteranopia (green-blind)

#6D7A9E

Tritanopia (blue-blind)

#009291

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #288b9e;
/* rgb */ color: rgb(40, 139, 158);
/* oklch */ color: oklch(59.0% 0.092 213.5);

Tailwind

colors: {
  custom: {
    50: '#74adba',
    500: '#288b9e',
    950: '#000000',
  },
}

SCSS

$custom: #288b9e;
$custom-light: #74adba;
$custom-dark: #000000;

JSON

{
  "hex": "#288b9e",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 158
  },
  "hsl": {
    "h": 189.661,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.58957,
    "c": 0.09185,
    "h": 213.5
  },
  "luminance": 0.21385
}

Semantic roles & 50–950 ramp

primary

#288B9E

secondary

#BF7263

accent

#5E45E3

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288B9E

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

Preview Lab → · Contrast checker → · Palette generator →