#278FAC#278FAC

#278FAC is a mid, moderate cyan. Relative luminance 0.231; OKLCH L 60.5% C 0.100 H 221.2°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#278FAC
RGB	rgb(39, 143, 172)
HSL	hsl(193, 63%, 41%)
HSV	hsv(193, 77%, 67%)
CMYK	cmyk(77.3%, 16.9%, 0%, 32.5%)
CIE-LAB	lab(55.13, -18.90, -23.55)
CIE-LCH	lch(55.13, 30.20, 231.25°)
OKLab	oklab(60.55% -0.0753 -0.0659)
OKLCH	oklch(60.55% 0.1 221.2)
XYZ	xyz(18.1024, 23.0526, 42.5173)
Luminance	0.2306 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278FAC #AC4427

analogous

#27AC87 #278FAC #274DAC

triadic

#278FAC #AC278F #8FAC27

tetradic

#278FAC #8727AC #AC4427 #4DAC27

square

#278FAC #8727AC #AC4427 #4DAC27

split-complementary

#278FAC #AC274D #AC8727

monochromatic

#103C48 #1C667A #278FAC #3DB2D3 #6FC6DE

Accessibility & contrast

On white

3.74

#278FAC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#278FAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278FAC

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278FAC	#FFFFFF	#000000	##000000
##278FAC	1.00	3.74	5.61	5.61
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8BAE

Deuteranopia (green-blind)

#6C7EAC

Tritanopia (blue-blind)

#009898

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #278fac;
/* rgb */ color: rgb(39, 143, 172);
/* oklch */ color: oklch(60.5% 0.100 221.2);

Tailwind

colors: {
  custom: {
    50: '#76b0c4',
    500: '#278fac',
    950: '#000000',
  },
}

SCSS

$custom: #278fac;
$custom-light: #76b0c4;
$custom-dark: #000000;

JSON

{
  "hex": "#278fac",
  "rgb": {
    "r": 39,
    "g": 143,
    "b": 172
  },
  "hsl": {
    "h": 193.083,
    "s": 63.033,
    "l": 41.373
  },
  "oklch": {
    "l": 0.60545,
    "c": 0.10009,
    "h": 221.2
  },
  "luminance": 0.23055
}

Semantic roles & 50–950 ramp

primary

#278FAC

secondary

#C57E6A

accent

#6642E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278FAC

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

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