#2A78B5#2A78B5

#2A78B5 is a mid, vivid cyan. Relative luminance 0.173; OKLCH L 55.5% C 0.121 H 246.3°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#2A78B5
RGB	rgb(42, 120, 181)
HSL	hsl(206, 62%, 44%)
HSV	hsv(206, 77%, 71%)
CMYK	cmyk(76.8%, 33.7%, 0%, 29%)
CIE-LAB	lab(48.59, -2.26, -38.93)
CIE-LCH	lch(48.59, 38.99, 266.68°)
OKLab	oklab(55.49% -0.0486 -0.1106)
OKLCH	oklch(55.49% 0.121 246.3)
XYZ	xyz(16.0086, 17.2595, 46.1948)
Luminance	0.1726 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A78B5 #B5672A

analogous

#2AB5AC #2A78B5 #2A32B5

triadic

#2A78B5 #B52A78 #78B52A

tetradic

#2A78B5 #AC2AB5 #B5672A #32B52A

square

#2A78B5 #AC2AB5 #B5672A #32B52A

split-complementary

#2A78B5 #B52A32 #B5AC2A

monochromatic

#133652 #1E5783 #2A78B5 #4897D4 #79B3E0

Accessibility & contrast

On white

4.72

#2A78B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#2A78B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A78B5

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A78B5	#FFFFFF	#000000	##FFFFFF
##2A78B5	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7AB8

Deuteranopia (green-blind)

#486EB4

Tritanopia (blue-blind)

#00878E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #2a78b5;
/* rgb */ color: rgb(42, 120, 181);
/* oklch */ color: oklch(55.5% 0.121 246.3);

Tailwind

colors: {
  custom: {
    50: '#789ecb',
    500: '#2a78b5',
    950: '#000000',
  },
}

SCSS

$custom: #2a78b5;
$custom-light: #789ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#2a78b5",
  "rgb": {
    "r": 42,
    "g": 120,
    "b": 181
  },
  "hsl": {
    "h": 206.331,
    "s": 62.332,
    "l": 43.725
  },
  "oklch": {
    "l": 0.55491,
    "c": 0.12078,
    "h": 246.3
  },
  "luminance": 0.17261
}

Semantic roles & 50–950 ramp

primary

#2A78B5

secondary

#C89873

accent

#8A42E5

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2A78B5

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

Preview Lab → · Contrast checker → · Palette generator →