#278DB0#278DB0

#278DB0 is a mid, moderate cyan. Relative luminance 0.226; OKLCH L 60.2% C 0.103 H 226.0°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#278DB0
RGB	rgb(39, 141, 176)
HSL	hsl(195, 64%, 42%)
HSV	hsv(195, 78%, 69%)
CMYK	cmyk(77.8%, 19.9%, 0%, 31%)
CIE-LAB	lab(54.67, -16.46, -26.54)
CIE-LCH	lch(54.67, 31.23, 238.20°)
OKLab	oklab(60.23% -0.0718 -0.0745)
OKLCH	oklch(60.23% 0.103 226)
XYZ	xyz(18.1948, 22.6135, 44.4718)
Luminance	0.2262 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278DB0 #B04A27

analogous

#27B08E #278DB0 #2749B0

triadic

#278DB0 #B0278D #8DB027

tetradic

#278DB0 #8E27B0 #B04A27 #49B027

square

#278DB0 #8E27B0 #B04A27 #49B027

split-complementary

#278DB0 #B02749 #B08E27

monochromatic

#113D4C #1C657E #278DB0 #40AFD5 #72C4E0

Accessibility & contrast

On white

3.80

#278DB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.52

#278DB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278DB0

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278DB0	#FFFFFF	#000000	##000000
##278DB0	1.00	3.80	5.52	5.52
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.52	21.00	1.00	1.00
##000000	5.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8AB2

Deuteranopia (green-blind)

#687DB0

Tritanopia (blue-blind)

#009798

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #278db0;
/* rgb */ color: rgb(39, 141, 176);
/* oklch */ color: oklch(60.2% 0.103 226.0);

Tailwind

colors: {
  custom: {
    50: '#77aec7',
    500: '#278db0',
    950: '#000000',
  },
}

SCSS

$custom: #278db0;
$custom-light: #77aec7;
$custom-dark: #000000;

JSON

{
  "hex": "#278db0",
  "rgb": {
    "r": 39,
    "g": 141,
    "b": 176
  },
  "hsl": {
    "h": 195.328,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.60233,
    "c": 0.10346,
    "h": 226
  },
  "luminance": 0.22616
}

Semantic roles & 50–950 ramp

primary

#278DB0

secondary

#C7836C

accent

#6B41E7

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #278DB0

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

Preview Lab → · Contrast checker → · Palette generator →