#278DA2#278DA2

#278DA2 is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 59.6% C 0.094 H 214.9°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#278DA2
RGB	rgb(39, 141, 162)
HSL	hsl(190, 61%, 39%)
HSV	hsv(190, 76%, 64%)
CMYK	cmyk(75.9%, 13%, 0%, 36.5%)
CIE-LAB	lab(54.12, -21.19, -19.36)
CIE-LCH	lch(54.12, 28.70, 222.41°)
OKLab	oklab(59.61% -0.0774 -0.054)
OKLCH	oklch(59.61% 0.094 214.9)
XYZ	xyz(16.8804, 22.0877, 37.5491)
Luminance	0.2209 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278DA2 #A23C27

analogous

#27A27A #278DA2 #2750A2

triadic

#278DA2 #A2278D #8DA227

tetradic

#278DA2 #7A27A2 #A23C27 #50A227

square

#278DA2 #7A27A2 #A23C27 #50A227

split-complementary

#278DA2 #A22750 #A27A27

monochromatic

#0F373F #1B6271 #278DA2 #37B5CF #69C7DB

Accessibility & contrast

On white

3.88

#278DA2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#278DA2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278DA2

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278DA2	#FFFFFF	#000000	##000000
##278DA2	1.00	3.88	5.42	5.42
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E88A3

Deuteranopia (green-blind)

#6D7CA2

Tritanopia (blue-blind)

#009594

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #278da2;
/* rgb */ color: rgb(39, 141, 162);
/* oklch */ color: oklch(59.6% 0.094 214.9);

Tailwind

colors: {
  custom: {
    50: '#75aebd',
    500: '#278da2',
    950: '#000000',
  },
}

SCSS

$custom: #278da2;
$custom-light: #75aebd;
$custom-dark: #000000;

JSON

{
  "hex": "#278da2",
  "rgb": {
    "r": 39,
    "g": 141,
    "b": 162
  },
  "hsl": {
    "h": 190.244,
    "s": 61.194,
    "l": 39.412
  },
  "oklch": {
    "l": 0.59607,
    "c": 0.09435,
    "h": 214.9
  },
  "luminance": 0.2209
}

Semantic roles & 50–950 ramp

primary

#278DA2

secondary

#C17464

accent

#5F43E4

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278DA2

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

Preview Lab → · Contrast checker → · Palette generator →