#288BA9#288BA9

#288BA9 is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.4% C 0.098 H 222.8°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#288BA9
RGB	rgb(40, 139, 169)
HSL	hsl(194, 62%, 41%)
HSV	hsv(194, 76%, 66%)
CMYK	cmyk(76.3%, 17.8%, 0%, 33.7%)
CIE-LAB	lab(53.79, -17.65, -23.88)
CIE-LCH	lch(53.79, 29.70, 233.54°)
OKLab	oklab(59.44% -0.0721 -0.0669)
OKLCH	oklch(59.44% 0.098 222.8)
XYZ	xyz(17.2661, 21.7789, 40.8222)
Luminance	0.2178 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288BA9 #A94628

analogous

#28A986 #288BA9 #284BA9

triadic

#288BA9 #A9288B #8BA928

tetradic

#288BA9 #8628A9 #A94628 #4BA928

square

#288BA9 #8628A9 #A94628 #4BA928

split-complementary

#288BA9 #A9284B #A98628

monochromatic

#113A46 #1C6278 #288BA9 #3DAFD1 #6FC3DD

Accessibility & contrast

On white

3.92

#288BA9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#288BA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288BA9

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288BA9	#FFFFFF	#000000	##000000
##288BA9	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A88AB

Deuteranopia (green-blind)

#687BA9

Tritanopia (blue-blind)

#009495

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #288ba9;
/* rgb */ color: rgb(40, 139, 169);
/* oklch */ color: oklch(59.4% 0.098 222.8);

Tailwind

colors: {
  custom: {
    50: '#76adc2',
    500: '#288ba9',
    950: '#000000',
  },
}

SCSS

$custom: #288ba9;
$custom-light: #76adc2;
$custom-dark: #000000;

JSON

{
  "hex": "#288ba9",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 169
  },
  "hsl": {
    "h": 193.953,
    "s": 61.722,
    "l": 40.98
  },
  "oklch": {
    "l": 0.59439,
    "c": 0.09836,
    "h": 222.8
  },
  "luminance": 0.21781
}

Semantic roles & 50–950 ramp

primary

#288BA9

secondary

#C47E69

accent

#6943E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288BA9

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

Preview Lab → · Contrast checker → · Palette generator →