#278AAC#278AAC

#278AAC is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.3% C 0.101 H 225.9°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#278AAC
RGB	rgb(39, 138, 172)
HSL	hsl(195, 63%, 41%)
HSV	hsv(195, 77%, 67%)
CMYK	cmyk(77.3%, 19.8%, 0%, 32.5%)
CIE-LAB	lab(53.58, -16.20, -25.93)
CIE-LCH	lch(53.58, 30.57, 238.01°)
OKLab	oklab(59.31% -0.0704 -0.0727)
OKLCH	oklch(59.31% 0.101 225.9)
XYZ	xyz(17.3685, 21.5848, 42.2726)
Luminance	0.2159 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278AAC #AC4927

analogous

#27AC8C #278AAC #2748AC

triadic

#278AAC #AC278A #8AAC27

tetradic

#278AAC #8C27AC #AC4927 #48AC27

square

#278AAC #8C27AC #AC4927 #48AC27

split-complementary

#278AAC #AC2748 #AC8C27

monochromatic

#103A48 #1C627A #278AAC #3DADD3 #6FC2DE

Accessibility & contrast

On white

3.95

#278AAC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#278AAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278AAC

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278AAC	#FFFFFF	#000000	##000000
##278AAC	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7787AE

Deuteranopia (green-blind)

#667AAC

Tritanopia (blue-blind)

#009495

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #278aac;
/* rgb */ color: rgb(39, 138, 172);
/* oklch */ color: oklch(59.3% 0.101 225.9);

Tailwind

colors: {
  custom: {
    50: '#76acc4',
    500: '#278aac',
    950: '#000000',
  },
}

SCSS

$custom: #278aac;
$custom-light: #76acc4;
$custom-dark: #000000;

JSON

{
  "hex": "#278aac",
  "rgb": {
    "r": 39,
    "g": 138,
    "b": 172
  },
  "hsl": {
    "h": 195.338,
    "s": 63.033,
    "l": 41.373
  },
  "oklch": {
    "l": 0.59307,
    "c": 0.10123,
    "h": 225.9
  },
  "luminance": 0.21587
}

Semantic roles & 50–950 ramp

primary

#278AAC

secondary

#C5816A

accent

#6C42E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278AAC

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

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