#278EB0#278EB0

#278EB0 is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 60.5% C 0.103 H 225.1°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#278EB0
RGB	rgb(39, 142, 176)
HSL	hsl(195, 64%, 42%)
HSV	hsv(195, 78%, 69%)
CMYK	cmyk(77.8%, 19.3%, 0%, 31%)
CIE-LAB	lab(54.98, -17.00, -26.07)
CIE-LCH	lch(54.98, 31.12, 236.89°)
OKLab	oklab(60.48% -0.0728 -0.0731)
OKLCH	oklch(60.48% 0.103 225.1)
XYZ	xyz(18.3429, 22.9097, 44.5211)
Luminance	0.2291 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278EB0 #B04927

analogous

#27B08E #278EB0 #2749B0

triadic

#278EB0 #B0278E #8EB027

tetradic

#278EB0 #8E27B0 #B04927 #49B027

square

#278EB0 #8E27B0 #B04927 #49B027

split-complementary

#278EB0 #B02749 #B08E27

monochromatic

#113D4C #1C667E #278EB0 #40B0D5 #72C4E0

Accessibility & contrast

On white

3.76

#278EB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#278EB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278EB0

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278EB0	#FFFFFF	#000000	##000000
##278EB0	1.00	3.76	5.58	5.58
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8BB2

Deuteranopia (green-blind)

#697EB0

Tritanopia (blue-blind)

#009899

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #278eb0;
/* rgb */ color: rgb(39, 142, 176);
/* oklch */ color: oklch(60.5% 0.103 225.1);

Tailwind

colors: {
  custom: {
    50: '#77afc7',
    500: '#278eb0',
    950: '#000000',
  },
}

SCSS

$custom: #278eb0;
$custom-light: #77afc7;
$custom-dark: #000000;

JSON

{
  "hex": "#278eb0",
  "rgb": {
    "r": 39,
    "g": 142,
    "b": 176
  },
  "hsl": {
    "h": 194.891,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.6048,
    "c": 0.10317,
    "h": 225.1
  },
  "luminance": 0.22912
}

Semantic roles & 50–950 ramp

primary

#278EB0

secondary

#C7836C

accent

#6A41E7

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #278EB0

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

Preview Lab → · Contrast checker → · Palette generator →