#288DAD#288DAD

#288DAD is a mid, moderate cyan. Relative luminance 0.225; OKLCH L 60.1% C 0.101 H 224.0°. Best body text is #000000 at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#288DAD
RGB	rgb(40, 141, 173)
HSL	hsl(194, 62%, 42%)
HSV	hsv(194, 77%, 68%)
CMYK	cmyk(76.9%, 18.5%, 0%, 32.2%)
CIE-LAB	lab(54.57, -17.37, -24.98)
CIE-LCH	lch(54.57, 30.43, 235.19°)
OKLab	oklab(60.12% -0.0725 -0.07)
OKLCH	oklch(60.12% 0.101 224)
XYZ	xyz(17.9396, 22.5158, 42.9276)
Luminance	0.2252 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288DAD #AD4828

analogous

#28AD8B #288DAD #284BAD

triadic

#288DAD #AD288D #8DAD28

tetradic

#288DAD #8B28AD #AD4828 #4BAD28

square

#288DAD #8B28AD #AD4828 #4BAD28

split-complementary

#288DAD #AD284B #AD8B28

monochromatic

#113C4A #1D647B #288DAD #3FAFD3 #71C4DE

Accessibility & contrast

On white

3.82

#288DAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.50

#288DAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288DAD

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288DAD	#FFFFFF	#000000	##000000
##288DAD	1.00	3.82	5.50	5.50
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.50	21.00	1.00	1.00
##000000	5.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8AAF

Deuteranopia (green-blind)

#697DAD

Tritanopia (blue-blind)

#009797

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #288dad;
/* rgb */ color: rgb(40, 141, 173);
/* oklch */ color: oklch(60.1% 0.101 224.0);

Tailwind

colors: {
  custom: {
    50: '#77aec5',
    500: '#288dad',
    950: '#000000',
  },
}

SCSS

$custom: #288dad;
$custom-light: #77aec5;
$custom-dark: #000000;

JSON

{
  "hex": "#288dad",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 173
  },
  "hsl": {
    "h": 194.436,
    "s": 62.441,
    "l": 41.765
  },
  "oklch": {
    "l": 0.60117,
    "c": 0.10081,
    "h": 224
  },
  "luminance": 0.22518
}

Semantic roles & 50–950 ramp

primary

#288DAD

secondary

#C5816C

accent

#6A42E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #288DAD

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

Preview Lab → · Contrast checker → · Palette generator →