#288CAF#288CAF

#288CAF is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 60.0% C 0.103 H 226.4°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#288CAF
RGB	rgb(40, 140, 175)
HSL	hsl(196, 63%, 42%)
HSV	hsv(196, 77%, 69%)
CMYK	cmyk(77.1%, 20%, 0%, 31.4%)
CIE-LAB	lab(54.34, -16.14, -26.47)
CIE-LCH	lch(54.34, 31.01, 238.63°)
OKLab	oklab(59.96% -0.0708 -0.0743)
OKLCH	oklch(59.96% 0.103 226.4)
XYZ	xyz(17.9878, 22.3003, 43.9055)
Luminance	0.2230 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288CAF #AF4B28

analogous

#28AF8F #288CAF #2848AF

triadic

#288CAF #AF288C #8CAF28

tetradic

#288CAF #8F28AF #AF4B28 #48AF28

square

#288CAF #8F28AF #AF4B28 #48AF28

split-complementary

#288CAF #AF2848 #AF8F28

monochromatic

#113C4B #1D647D #288CAF #41ADD4 #73C3DF

Accessibility & contrast

On white

3.85

#288CAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#288CAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288CAF

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288CAF	#FFFFFF	#000000	##000000
##288CAF	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7989B1

Deuteranopia (green-blind)

#677CAF

Tritanopia (blue-blind)

#009697

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #288caf;
/* rgb */ color: rgb(40, 140, 175);
/* oklch */ color: oklch(60.0% 0.103 226.4);

Tailwind

colors: {
  custom: {
    50: '#77adc7',
    500: '#288caf',
    950: '#000000',
  },
}

SCSS

$custom: #288caf;
$custom-light: #77adc7;
$custom-dark: #000000;

JSON

{
  "hex": "#288caf",
  "rgb": {
    "r": 40,
    "g": 140,
    "b": 175
  },
  "hsl": {
    "h": 195.556,
    "s": 62.791,
    "l": 42.157
  },
  "oklch": {
    "l": 0.59963,
    "c": 0.10262,
    "h": 226.4
  },
  "luminance": 0.22302
}

Semantic roles & 50–950 ramp

primary

#288CAF

secondary

#C6846D

accent

#6C42E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #288CAF

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

Preview Lab → · Contrast checker → · Palette generator →