#278AA6#278AA6

#278AA6 is a mid, moderate cyan. Relative luminance 0.214; OKLCH L 59.0% C 0.097 H 221.3°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#278AA6
RGB	rgb(39, 138, 166)
HSL	hsl(193, 62%, 40%)
HSV	hsv(193, 77%, 65%)
CMYK	cmyk(76.5%, 16.9%, 0%, 34.9%)
CIE-LAB	lab(53.34, -18.25, -22.85)
CIE-LCH	lch(53.34, 29.25, 231.39°)
OKLab	oklab(59.03% -0.0727 -0.064)
OKLCH	oklch(59.03% 0.097 221.3)
XYZ	xyz(16.8052, 21.3594, 39.3061)
Luminance	0.2136 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278AA6 #A64327

analogous

#27A682 #278AA6 #274BA6

triadic

#278AA6 #A6278A #8AA627

tetradic

#278AA6 #8227A6 #A64327 #4BA627

square

#278AA6 #8227A6 #A64327 #4BA627

split-complementary

#278AA6 #A6274B #A68227

monochromatic

#103843 #1B6174 #278AA6 #3AAFD1 #6BC3DC

Accessibility & contrast

On white

3.98

#278AA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#278AA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278AA6

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278AA6	#FFFFFF	#000000	##000000
##278AA6	1.00	3.98	5.27	5.27
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7986A7

Deuteranopia (green-blind)

#687AA6

Tritanopia (blue-blind)

#009393

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #278aa6;
/* rgb */ color: rgb(39, 138, 166);
/* oklch */ color: oklch(59.0% 0.097 221.3);

Tailwind

colors: {
  custom: {
    50: '#75acc0',
    500: '#278aa6',
    950: '#000000',
  },
}

SCSS

$custom: #278aa6;
$custom-light: #75acc0;
$custom-dark: #000000;

JSON

{
  "hex": "#278aa6",
  "rgb": {
    "r": 39,
    "g": 138,
    "b": 166
  },
  "hsl": {
    "h": 193.228,
    "s": 61.951,
    "l": 40.196
  },
  "oklch": {
    "l": 0.59032,
    "c": 0.09685,
    "h": 221.3
  },
  "luminance": 0.21361
}

Semantic roles & 50–950 ramp

primary

#278AA6

secondary

#C37B66

accent

#6743E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278AA6

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

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