#288AAF#288AAF

#288AAF is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.5% C 0.103 H 228.2°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#288AAF
RGB	rgb(40, 138, 175)
HSL	hsl(196, 63%, 42%)
HSV	hsv(196, 77%, 69%)
CMYK	cmyk(77.1%, 21.1%, 0%, 31.4%)
CIE-LAB	lab(53.73, -15.04, -27.43)
CIE-LCH	lch(53.73, 31.28, 241.26°)
OKLab	oklab(59.47% -0.0688 -0.077)
OKLCH	oklch(59.47% 0.103 228.2)
XYZ	xyz(17.6982, 21.7211, 43.8089)
Luminance	0.2172 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288AAF #AF4D28

analogous

#28AF90 #288AAF #2847AF

triadic

#288AAF #AF288A #8AAF28

tetradic

#288AAF #9028AF #AF4D28 #47AF28

square

#288AAF #9028AF #AF4D28 #47AF28

split-complementary

#288AAF #AF2847 #AF9028

monochromatic

#113B4B #1D637D #288AAF #41ABD4 #73C1DF

Accessibility & contrast

On white

3.93

#288AAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#288AAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288AAF

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288AAF	#FFFFFF	#000000	##000000
##288AAF	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7788B1

Deuteranopia (green-blind)

#657BAF

Tritanopia (blue-blind)

#009496

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #288aaf;
/* rgb */ color: rgb(40, 138, 175);
/* oklch */ color: oklch(59.5% 0.103 228.2);

Tailwind

colors: {
  custom: {
    50: '#77acc7',
    500: '#288aaf',
    950: '#000000',
  },
}

SCSS

$custom: #288aaf;
$custom-light: #77acc7;
$custom-dark: #000000;

JSON

{
  "hex": "#288aaf",
  "rgb": {
    "r": 40,
    "g": 138,
    "b": 175
  },
  "hsl": {
    "h": 196.444,
    "s": 62.791,
    "l": 42.157
  },
  "oklch": {
    "l": 0.59471,
    "c": 0.10331,
    "h": 228.2
  },
  "luminance": 0.21723
}

Semantic roles & 50–950 ramp

primary

#288AAF

secondary

#C6856D

accent

#6F42E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #288AAF

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

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