#278AA8#278AA8

#278AA8 is a mid, moderate cyan. Relative luminance 0.214; OKLCH L 59.1% C 0.098 H 222.9°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#278AA8
RGB	rgb(39, 138, 168)
HSL	hsl(194, 62%, 41%)
HSV	hsv(194, 77%, 66%)
CMYK	cmyk(76.8%, 17.9%, 0%, 34.1%)
CIE-LAB	lab(53.42, -17.57, -23.88)
CIE-LCH	lch(53.42, 29.65, 233.66°)
OKLab	oklab(59.12% -0.0719 -0.0669)
OKLCH	oklch(59.12% 0.098 222.9)
XYZ	xyz(16.9901, 21.4334, 40.2798)
Luminance	0.2144 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278AA8 #A84527

analogous

#27A885 #278AA8 #274AA8

triadic

#278AA8 #A8278A #8AA827

tetradic

#278AA8 #8527A8 #A84527 #4AA827

square

#278AA8 #8527A8 #A84527 #4AA827

split-complementary

#278AA8 #A8274A #A88527

monochromatic

#103845 #1B6176 #278AA8 #3BAED1 #6CC3DD

Accessibility & contrast

On white

3.97

#278AA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#278AA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278AA8

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278AA8	#FFFFFF	#000000	##000000
##278AA8	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7987AA

Deuteranopia (green-blind)

#677AA8

Tritanopia (blue-blind)

#009394

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #278aa8;
/* rgb */ color: rgb(39, 138, 168);
/* oklch */ color: oklch(59.1% 0.098 222.9);

Tailwind

colors: {
  custom: {
    50: '#75acc2',
    500: '#278aa8',
    950: '#000000',
  },
}

SCSS

$custom: #278aa8;
$custom-light: #75acc2;
$custom-dark: #000000;

JSON

{
  "hex": "#278aa8",
  "rgb": {
    "r": 39,
    "g": 138,
    "b": 168
  },
  "hsl": {
    "h": 193.953,
    "s": 62.319,
    "l": 40.588
  },
  "oklch": {
    "l": 0.59122,
    "c": 0.09823,
    "h": 222.9
  },
  "luminance": 0.21435
}

Semantic roles & 50–950 ramp

primary

#278AA8

secondary

#C37D67

accent

#6842E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278AA8

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

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