#278FAA#278FAA

#278FAA is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.5% C 0.099 H 219.6°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#278FAA
RGB	rgb(39, 143, 170)
HSL	hsl(192, 63%, 41%)
HSV	hsv(192, 77%, 67%)
CMYK	cmyk(77.1%, 15.9%, 0%, 33.3%)
CIE-LAB	lab(55.05, -19.58, -22.53)
CIE-LCH	lch(55.05, 29.85, 229.00°)
OKLab	oklab(60.46% -0.0761 -0.063)
OKLCH	oklch(60.46% 0.099 219.6)
XYZ	xyz(17.9118, 22.9764, 41.5133)
Luminance	0.2298 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278FAA #AA4227

analogous

#27AA83 #278FAA #274EAA

triadic

#278FAA #AA278F #8FAA27

tetradic

#278FAA #8327AA #AA4227 #4EAA27

square

#278FAA #8327AA #AA4227 #4EAA27

split-complementary

#278FAA #AA274E #AA8327

monochromatic

#103B46 #1C6578 #278FAA #3CB3D2 #6EC7DE

Accessibility & contrast

On white

3.75

#278FAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#278FAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278FAA

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278FAA	#FFFFFF	#000000	##000000
##278FAA	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8BAB

Deuteranopia (green-blind)

#6D7EAA

Tritanopia (blue-blind)

#009898

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #278faa;
/* rgb */ color: rgb(39, 143, 170);
/* oklch */ color: oklch(60.5% 0.099 219.6);

Tailwind

colors: {
  custom: {
    50: '#76b0c3',
    500: '#278faa',
    950: '#000000',
  },
}

SCSS

$custom: #278faa;
$custom-light: #76b0c3;
$custom-dark: #000000;

JSON

{
  "hex": "#278faa",
  "rgb": {
    "r": 39,
    "g": 143,
    "b": 170
  },
  "hsl": {
    "h": 192.366,
    "s": 62.679,
    "l": 40.98
  },
  "oklch": {
    "l": 0.60456,
    "c": 0.0988,
    "h": 219.6
  },
  "luminance": 0.22979
}

Semantic roles & 50–950 ramp

primary

#278FAA

secondary

#C47B69

accent

#6442E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278FAA

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

Preview Lab → · Contrast checker → · Palette generator →