#278FAD#278FAD

#278FAD is a mid, moderate cyan. Relative luminance 0.231; OKLCH L 60.6% C 0.101 H 222.0°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#278FAD
RGB	rgb(39, 143, 173)
HSL	hsl(193, 63%, 42%)
HSV	hsv(193, 77%, 68%)
CMYK	cmyk(77.5%, 17.3%, 0%, 32.2%)
CIE-LAB	lab(55.17, -18.57, -24.06)
CIE-LCH	lch(55.17, 30.39, 232.35°)
OKLab	oklab(60.59% -0.0749 -0.0674)
OKLCH	oklch(60.59% 0.101 222)
XYZ	xyz(18.1988, 23.0912, 43.0249)
Luminance	0.2309 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278FAD #AD4527

analogous

#27AD88 #278FAD #274CAD

triadic

#278FAD #AD278F #8FAD27

tetradic

#278FAD #8827AD #AD4527 #4CAD27

square

#278FAD #8827AD #AD4527 #4CAD27

split-complementary

#278FAD #AD274C #AD8827

monochromatic

#103C49 #1C667B #278FAD #3EB2D3 #70C6DF

Accessibility & contrast

On white

3.74

#278FAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#278FAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278FAD

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278FAD	#FFFFFF	#000000	##000000
##278FAD	1.00	3.74	5.62	5.62
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.62	21.00	1.00	1.00
##000000	5.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8BAF

Deuteranopia (green-blind)

#6C7EAD

Tritanopia (blue-blind)

#009899

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #278fad;
/* rgb */ color: rgb(39, 143, 173);
/* oklch */ color: oklch(60.6% 0.101 222.0);

Tailwind

colors: {
  custom: {
    50: '#77b0c5',
    500: '#278fad',
    950: '#000000',
  },
}

SCSS

$custom: #278fad;
$custom-light: #77b0c5;
$custom-dark: #000000;

JSON

{
  "hex": "#278fad",
  "rgb": {
    "r": 39,
    "g": 143,
    "b": 173
  },
  "hsl": {
    "h": 193.433,
    "s": 63.208,
    "l": 41.569
  },
  "oklch": {
    "l": 0.6059,
    "c": 0.10076,
    "h": 222
  },
  "luminance": 0.23093
}

Semantic roles & 50–950 ramp

primary

#278FAD

secondary

#C67F6A

accent

#6642E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #278FAD

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

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