#2A78B4#2A78B4

#2A78B4 is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.4% C 0.120 H 245.9°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#2A78B4
RGB	rgb(42, 120, 180)
HSL	hsl(206, 62%, 44%)
HSV	hsv(206, 77%, 71%)
CMYK	cmyk(76.7%, 33.3%, 0%, 29.4%)
CIE-LAB	lab(48.53, -2.63, -38.43)
CIE-LCH	lch(48.53, 38.52, 266.09°)
OKLab	oklab(55.43% -0.0489 -0.1091)
OKLCH	oklch(55.43% 0.12 245.9)
XYZ	xyz(15.9064, 17.2186, 45.6564)
Luminance	0.1722 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A78B4 #B4662A

analogous

#2AB4AB #2A78B4 #2A33B4

triadic

#2A78B4 #B42A78 #78B42A

tetradic

#2A78B4 #AB2AB4 #B4662A #33B42A

square

#2A78B4 #AB2AB4 #B4662A #33B42A

split-complementary

#2A78B4 #B42A33 #B4AB2A

monochromatic

#133651 #1E5782 #2A78B4 #4797D4 #79B3E0

Accessibility & contrast

On white

4.73

#2A78B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#2A78B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A78B4

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A78B4	#FFFFFF	#000000	##FFFFFF
##2A78B4	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7AB7

Deuteranopia (green-blind)

#496EB3

Tritanopia (blue-blind)

#00878E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #2a78b4;
/* rgb */ color: rgb(42, 120, 180);
/* oklch */ color: oklch(55.4% 0.120 245.9);

Tailwind

colors: {
  custom: {
    50: '#779ecb',
    500: '#2a78b4',
    950: '#000000',
  },
}

SCSS

$custom: #2a78b4;
$custom-light: #779ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#2a78b4",
  "rgb": {
    "r": 42,
    "g": 120,
    "b": 180
  },
  "hsl": {
    "h": 206.087,
    "s": 62.162,
    "l": 43.529
  },
  "oklch": {
    "l": 0.55434,
    "c": 0.11958,
    "h": 245.9
  },
  "luminance": 0.1722
}

Semantic roles & 50–950 ramp

primary

#2A78B4

secondary

#C89772

accent

#8943E5

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2A78B4

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

Preview Lab → · Contrast checker → · Palette generator →