#2278A8#2278A8

#2278A8 is a mid, moderate cyan. Relative luminance 0.166; OKLCH L 54.6% C 0.108 H 238.6°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#2278A8
RGB	rgb(34, 120, 168)
HSL	hsl(201, 66%, 40%)
HSV	hsv(201, 80%, 66%)
CMYK	cmyk(79.8%, 28.6%, 0%, 34.1%)
CIE-LAB	lab(47.75, -7.98, -32.70)
CIE-LCH	lch(47.75, 33.66, 256.29°)
OKLab	oklab(54.57% -0.0565 -0.0925)
OKLCH	oklch(54.57% 0.108 238.6)
XYZ	xyz(14.4412, 16.5984, 39.4809)
Luminance	0.1660 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2278A8 #A85222

analogous

#22A895 #2278A8 #2235A8

triadic

#2278A8 #A82278 #78A822

tetradic

#2278A8 #9522A8 #A85222 #35A822

square

#2278A8 #9522A8 #A85222 #35A822

split-complementary

#2278A8 #A82235 #A89522

monochromatic

#0D2F42 #185475 #2278A8 #329BD5 #65B4E0

Accessibility & contrast

On white

4.86

#2278A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#2278A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2278A8

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2278A8	#FFFFFF	#000000	##FFFFFF
##2278A8	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6178AA

Deuteranopia (green-blind)

#4F6CA7

Tritanopia (blue-blind)

#008489

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #2278a8;
/* rgb */ color: rgb(34, 120, 168);
/* oklch */ color: oklch(54.6% 0.108 238.6);

Tailwind

colors: {
  custom: {
    50: '#739ec2',
    500: '#2278a8',
    950: '#000000',
  },
}

SCSS

$custom: #2278a8;
$custom-light: #739ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#2278a8",
  "rgb": {
    "r": 34,
    "g": 120,
    "b": 168
  },
  "hsl": {
    "h": 201.493,
    "s": 66.337,
    "l": 39.608
  },
  "oklch": {
    "l": 0.54565,
    "c": 0.10841,
    "h": 238.6
  },
  "luminance": 0.166
}

Semantic roles & 50–950 ramp

primary

#2278A8

secondary

#C58561

accent

#7C3FE9

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #2278A8

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

Preview Lab → · Contrast checker → · Palette generator →