#278EA8#278EA8

#278EA8 is a mid, moderate cyan. Relative luminance 0.226; OKLCH L 60.1% C 0.098 H 219.0°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#278EA8
RGB	rgb(39, 142, 168)
HSL	hsl(192, 62%, 41%)
HSV	hsv(192, 77%, 66%)
CMYK	cmyk(76.8%, 15.5%, 0%, 34.1%)
CIE-LAB	lab(54.66, -19.72, -21.98)
CIE-LCH	lch(54.66, 29.53, 228.10°)
OKLab	oklab(60.12% -0.0759 -0.0614)
OKLCH	oklch(60.12% 0.098 219)
XYZ	xyz(17.5746, 22.6024, 40.4746)
Luminance	0.2260 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278EA8 #A84127

analogous

#27A881 #278EA8 #274DA8

triadic

#278EA8 #A8278E #8EA827

tetradic

#278EA8 #8127A8 #A84127 #4DA827

square

#278EA8 #8127A8 #A84127 #4DA827

split-complementary

#278EA8 #A8274D #A88127

monochromatic

#103A45 #1B6476 #278EA8 #3BB3D1 #6CC6DD

Accessibility & contrast

On white

3.80

#278EA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.52

#278EA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278EA8

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278EA8	#FFFFFF	#000000	##000000
##278EA8	1.00	3.80	5.52	5.52
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.52	21.00	1.00	1.00
##000000	5.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8AA9

Deuteranopia (green-blind)

#6C7DA8

Tritanopia (blue-blind)

#009796

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #278ea8;
/* rgb */ color: rgb(39, 142, 168);
/* oklch */ color: oklch(60.1% 0.098 219.0);

Tailwind

colors: {
  custom: {
    50: '#76afc2',
    500: '#278ea8',
    950: '#000000',
  },
}

SCSS

$custom: #278ea8;
$custom-light: #76afc2;
$custom-dark: #000000;

JSON

{
  "hex": "#278ea8",
  "rgb": {
    "r": 39,
    "g": 142,
    "b": 168
  },
  "hsl": {
    "h": 192.093,
    "s": 62.319,
    "l": 40.588
  },
  "oklch": {
    "l": 0.60118,
    "c": 0.09767,
    "h": 219
  },
  "luminance": 0.22604
}

Semantic roles & 50–950 ramp

primary

#278EA8

secondary

#C37A67

accent

#6342E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278EA8

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

Preview Lab → · Contrast checker → · Palette generator →