#2A78AB#2A78AB

#2A78AB is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 54.9% C 0.109 H 241.7°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#2A78AB
RGB	rgb(42, 120, 171)
HSL	hsl(204, 61%, 42%)
HSV	hsv(204, 75%, 67%)
CMYK	cmyk(75.4%, 29.8%, 0%, 32.9%)
CIE-LAB	lab(48.09, -5.92, -33.91)
CIE-LCH	lch(48.09, 34.42, 260.09°)
OKLab	oklab(54.94% -0.0516 -0.0959)
OKLCH	oklch(54.94% 0.109 241.7)
XYZ	xyz(15.0191, 16.8637, 40.9836)
Luminance	0.1686 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A78AB #AB5D2A

analogous

#2AAB9E #2A78AB #2A38AB

triadic

#2A78AB #AB2A78 #78AB2A

tetradic

#2A78AB #9E2AAB #AB5D2A #38AB2A

square

#2A78AB #9E2AAB #AB5D2A #38AB2A

split-complementary

#2A78AB #AB2A38 #AB9E2A

monochromatic

#123349 #1E567A #2A78AB #4298D1 #73B3DD

Accessibility & contrast

On white

4.80

#2A78AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#2A78AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A78AB

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A78AB	#FFFFFF	#000000	##FFFFFF
##2A78AB	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6079AD

Deuteranopia (green-blind)

#4F6DAA

Tritanopia (blue-blind)

#00858A

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #2a78ab;
/* rgb */ color: rgb(42, 120, 171);
/* oklch */ color: oklch(54.9% 0.109 241.7);

Tailwind

colors: {
  custom: {
    50: '#769ec4',
    500: '#2a78ab',
    950: '#000000',
  },
}

SCSS

$custom: #2a78ab;
$custom-light: #769ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#2a78ab",
  "rgb": {
    "r": 42,
    "g": 120,
    "b": 171
  },
  "hsl": {
    "h": 203.721,
    "s": 60.563,
    "l": 41.765
  },
  "oklch": {
    "l": 0.54935,
    "c": 0.10897,
    "h": 241.7
  },
  "luminance": 0.16865
}

Semantic roles & 50–950 ramp

primary

#2A78AB

secondary

#C48F6D

accent

#8344E4

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #2A78AB

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

Preview Lab → · Contrast checker → · Palette generator →