#278BAC#278BAC

#278BAC is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.6% C 0.101 H 225.0°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#278BAC
RGB	rgb(39, 139, 172)
HSL	hsl(195, 63%, 41%)
HSV	hsv(195, 77%, 67%)
CMYK	cmyk(77.3%, 19.2%, 0%, 32.5%)
CIE-LAB	lab(53.89, -16.74, -25.45)
CIE-LCH	lch(53.89, 30.47, 236.67°)
OKLab	oklab(59.55% -0.0714 -0.0714)
OKLCH	oklch(59.55% 0.101 225)
XYZ	xyz(17.5126, 21.8730, 42.3207)
Luminance	0.2188 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278BAC #AC4827

analogous

#27AC8B #278BAC #2749AC

triadic

#278BAC #AC278B #8BAC27

tetradic

#278BAC #8B27AC #AC4827 #49AC27

square

#278BAC #8B27AC #AC4827 #49AC27

split-complementary

#278BAC #AC2749 #AC8B27

monochromatic

#103A48 #1C637A #278BAC #3DAED3 #6FC3DE

Accessibility & contrast

On white

3.91

#278BAC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#278BAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278BAC

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278BAC	#FFFFFF	#000000	##000000
##278BAC	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7988AE

Deuteranopia (green-blind)

#677BAC

Tritanopia (blue-blind)

#009596

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #278bac;
/* rgb */ color: rgb(39, 139, 172);
/* oklch */ color: oklch(59.6% 0.101 225.0);

Tailwind

colors: {
  custom: {
    50: '#76adc4',
    500: '#278bac',
    950: '#000000',
  },
}

SCSS

$custom: #278bac;
$custom-light: #76adc4;
$custom-dark: #000000;

JSON

{
  "hex": "#278bac",
  "rgb": {
    "r": 39,
    "g": 139,
    "b": 172
  },
  "hsl": {
    "h": 194.887,
    "s": 63.033,
    "l": 41.373
  },
  "oklch": {
    "l": 0.59554,
    "c": 0.10094,
    "h": 225
  },
  "luminance": 0.21875
}

Semantic roles & 50–950 ramp

primary

#278BAC

secondary

#C5806A

accent

#6B42E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278BAC

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

Preview Lab → · Contrast checker → · Palette generator →