#278DA8#278DA8

#278DA8 is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 59.9% C 0.098 H 220.0°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#278DA8
RGB	rgb(39, 141, 168)
HSL	hsl(193, 62%, 41%)
HSV	hsv(193, 77%, 66%)
CMYK	cmyk(76.8%, 16.1%, 0%, 34.1%)
CIE-LAB	lab(54.35, -19.18, -22.45)
CIE-LCH	lch(54.35, 29.53, 229.49°)
OKLab	oklab(59.87% -0.0749 -0.0628)
OKLCH	oklch(59.87% 0.098 220)
XYZ	xyz(17.4265, 22.3061, 40.4253)
Luminance	0.2231 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278DA8 #A84227

analogous

#27A882 #278DA8 #274CA8

triadic

#278DA8 #A8278D #8DA827

tetradic

#278DA8 #8227A8 #A84227 #4CA827

square

#278DA8 #8227A8 #A84227 #4CA827

split-complementary

#278DA8 #A8274C #A88227

monochromatic

#103A45 #1B6376 #278DA8 #3BB2D1 #6CC5DD

Accessibility & contrast

On white

3.85

#278DA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#278DA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278DA8

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278DA8	#FFFFFF	#000000	##000000
##278DA8	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C89A9

Deuteranopia (green-blind)

#6B7DA8

Tritanopia (blue-blind)

#009696

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #278da8;
/* rgb */ color: rgb(39, 141, 168);
/* oklch */ color: oklch(59.9% 0.098 220.0);

Tailwind

colors: {
  custom: {
    50: '#76aec2',
    500: '#278da8',
    950: '#000000',
  },
}

SCSS

$custom: #278da8;
$custom-light: #76aec2;
$custom-dark: #000000;

JSON

{
  "hex": "#278da8",
  "rgb": {
    "r": 39,
    "g": 141,
    "b": 168
  },
  "hsl": {
    "h": 192.558,
    "s": 62.319,
    "l": 40.588
  },
  "oklch": {
    "l": 0.59869,
    "c": 0.09776,
    "h": 220
  },
  "luminance": 0.22308
}

Semantic roles & 50–950 ramp

primary

#278DA8

secondary

#C37B67

accent

#6542E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278DA8

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

Preview Lab → · Contrast checker → · Palette generator →