#278BA8#278BA8

#278BA8 is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.4% C 0.098 H 221.9°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#278BA8
RGB	rgb(39, 139, 168)
HSL	hsl(193, 62%, 41%)
HSV	hsv(193, 77%, 66%)
CMYK	cmyk(76.8%, 17.3%, 0%, 34.1%)
CIE-LAB	lab(53.73, -18.11, -23.41)
CIE-LCH	lch(53.73, 29.59, 232.27°)
OKLab	oklab(59.37% -0.0729 -0.0655)
OKLCH	oklch(59.37% 0.098 221.9)
XYZ	xyz(17.1343, 21.7217, 40.3279)
Luminance	0.2172 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278BA8 #A84427

analogous

#27A884 #278BA8 #274BA8

triadic

#278BA8 #A8278B #8BA827

tetradic

#278BA8 #8427A8 #A84427 #4BA827

square

#278BA8 #8427A8 #A84427 #4BA827

split-complementary

#278BA8 #A8274B #A88427

monochromatic

#103945 #1B6276 #278BA8 #3BB0D1 #6CC4DD

Accessibility & contrast

On white

3.93

#278BA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#278BA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278BA8

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278BA8	#FFFFFF	#000000	##000000
##278BA8	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A87AA

Deuteranopia (green-blind)

#697BA8

Tritanopia (blue-blind)

#009494

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #278ba8;
/* rgb */ color: rgb(39, 139, 168);
/* oklch */ color: oklch(59.4% 0.098 221.9);

Tailwind

colors: {
  custom: {
    50: '#75adc2',
    500: '#278ba8',
    950: '#000000',
  },
}

SCSS

$custom: #278ba8;
$custom-light: #75adc2;
$custom-dark: #000000;

JSON

{
  "hex": "#278ba8",
  "rgb": {
    "r": 39,
    "g": 139,
    "b": 168
  },
  "hsl": {
    "h": 193.488,
    "s": 62.319,
    "l": 40.588
  },
  "oklch": {
    "l": 0.59371,
    "c": 0.09804,
    "h": 221.9
  },
  "luminance": 0.21724
}

Semantic roles & 50–950 ramp

primary

#278BA8

secondary

#C37C67

accent

#6742E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278BA8

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

Preview Lab → · Contrast checker → · Palette generator →