#278FAF#278FAF

#278FAF is a mid, moderate cyan. Relative luminance 0.232; OKLCH L 60.7% C 0.102 H 223.5°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#278FAF
RGB	rgb(39, 143, 175)
HSL	hsl(194, 64%, 42%)
HSV	hsv(194, 78%, 69%)
CMYK	cmyk(77.7%, 18.3%, 0%, 31.4%)
CIE-LAB	lab(55.25, -17.89, -25.08)
CIE-LCH	lch(55.25, 30.81, 234.51°)
OKLab	oklab(60.68% -0.0741 -0.0703)
OKLCH	oklch(60.68% 0.102 223.5)
XYZ	xyz(18.3938, 23.1692, 44.0518)
Luminance	0.2317 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278FAF #AF4727

analogous

#27AF8B #278FAF #274BAF

triadic

#278FAF #AF278F #8FAF27

tetradic

#278FAF #8B27AF #AF4727 #4BAF27

square

#278FAF #8B27AF #AF4727 #4BAF27

split-complementary

#278FAF #AF274B #AF8B27

monochromatic

#113D4B #1C667D #278FAF #3FB1D4 #71C5DF

Accessibility & contrast

On white

3.73

#278FAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.63

#278FAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278FAF

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278FAF	#FFFFFF	#000000	##000000
##278FAF	1.00	3.73	5.63	5.63
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.63	21.00	1.00	1.00
##000000	5.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8CB1

Deuteranopia (green-blind)

#6B7FAF

Tritanopia (blue-blind)

#009999

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #278faf;
/* rgb */ color: rgb(39, 143, 175);
/* oklch */ color: oklch(60.7% 0.102 223.5);

Tailwind

colors: {
  custom: {
    50: '#77b0c7',
    500: '#278faf',
    950: '#000000',
  },
}

SCSS

$custom: #278faf;
$custom-light: #77b0c7;
$custom-dark: #000000;

JSON

{
  "hex": "#278faf",
  "rgb": {
    "r": 39,
    "g": 143,
    "b": 175
  },
  "hsl": {
    "h": 194.118,
    "s": 63.551,
    "l": 41.961
  },
  "oklch": {
    "l": 0.6068,
    "c": 0.10217,
    "h": 223.5
  },
  "luminance": 0.23171
}

Semantic roles & 50–950 ramp

primary

#278FAF

secondary

#C6816B

accent

#6841E7

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #278FAF

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

Preview Lab → · Contrast checker → · Palette generator →