#278EB2#278EB2

#278EB2 is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.6% C 0.105 H 226.6°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#278EB2
RGB	rgb(39, 142, 178)
HSL	hsl(196, 64%, 43%)
HSV	hsv(196, 78%, 70%)
CMYK	cmyk(78.1%, 20.2%, 0%, 30.2%)
CIE-LAB	lab(55.06, -16.31, -27.08)
CIE-LCH	lch(55.06, 31.62, 238.94°)
OKLab	oklab(60.57% -0.072 -0.076)
OKLCH	oklch(60.57% 0.105 226.6)
XYZ	xyz(18.5423, 22.9894, 45.5710)
Luminance	0.2299 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278EB2 #B24B27

analogous

#27B291 #278EB2 #2748B2

triadic

#278EB2 #B2278E #8EB227

tetradic

#278EB2 #9127B2 #B24B27 #48B227

square

#278EB2 #9127B2 #B24B27 #48B227

split-complementary

#278EB2 #B22748 #B29127

monochromatic

#113E4E #1C6680 #278EB2 #41AFD5 #73C4E0

Accessibility & contrast

On white

3.75

#278EB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#278EB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278EB2

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278EB2	#FFFFFF	#000000	##000000
##278EB2	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8BB4

Deuteranopia (green-blind)

#687EB2

Tritanopia (blue-blind)

#00989A

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #278eb2;
/* rgb */ color: rgb(39, 142, 178);
/* oklch */ color: oklch(60.6% 0.105 226.6);

Tailwind

colors: {
  custom: {
    50: '#77afc9',
    500: '#278eb2',
    950: '#000000',
  },
}

SCSS

$custom: #278eb2;
$custom-light: #77afc9;
$custom-dark: #000000;

JSON

{
  "hex": "#278eb2",
  "rgb": {
    "r": 39,
    "g": 142,
    "b": 178
  },
  "hsl": {
    "h": 195.54,
    "s": 64.055,
    "l": 42.549
  },
  "oklch": {
    "l": 0.60573,
    "c": 0.10473,
    "h": 226.6
  },
  "luminance": 0.22992
}

Semantic roles & 50–950 ramp

primary

#278EB2

secondary

#C8856D

accent

#6C41E7

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #278EB2

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

Preview Lab → · Contrast checker → · Palette generator →