#2D78AB#2D78AB

#2D78AB is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 55.0% C 0.108 H 242.4°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#2D78AB
RGB	rgb(45, 120, 171)
HSL	hsl(204, 58%, 42%)
HSV	hsv(204, 74%, 67%)
CMYK	cmyk(73.7%, 29.8%, 0%, 32.9%)
CIE-LAB	lab(48.17, -5.52, -33.77)
CIE-LCH	lch(48.17, 34.22, 260.72°)
OKLab	oklab(55.02% -0.05 -0.0955)
OKLCH	oklch(55.02% 0.108 242.4)
XYZ	xyz(15.1465, 16.9294, 40.9896)
Luminance	0.1693 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D78AB #AB602D

analogous

#2DAB9F #2D78AB #2D39AB

triadic

#2D78AB #AB2D78 #78AB2D

tetradic

#2D78AB #9F2DAB #AB602D #39AB2D

square

#2D78AB #9F2DAB #AB602D #39AB2D

split-complementary

#2D78AB #AB2D39 #AB9F2D

monochromatic

#14344A #20567B #2D78AB #4798CE #77B3DB

Accessibility & contrast

On white

4.79

#2D78AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#2D78AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2D78AB

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D78AB	#FFFFFF	#000000	##FFFFFF
##2D78AB	1.00	4.79	4.39	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6179AD

Deuteranopia (green-blind)

#4F6DAA

Tritanopia (blue-blind)

#00858A

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #2d78ab;
/* rgb */ color: rgb(45, 120, 171);
/* oklch */ color: oklch(55.0% 0.108 242.4);

Tailwind

colors: {
  custom: {
    50: '#779ec4',
    500: '#2d78ab',
    950: '#000000',
  },
}

SCSS

$custom: #2d78ab;
$custom-light: #779ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#2d78ab",
  "rgb": {
    "r": 45,
    "g": 120,
    "b": 171
  },
  "hsl": {
    "h": 204.286,
    "s": 58.333,
    "l": 42.353
  },
  "oklch": {
    "l": 0.55024,
    "c": 0.10782,
    "h": 242.4
  },
  "luminance": 0.16931
}

Semantic roles & 50–950 ramp

primary

#2D78AB

secondary

#C39271

accent

#8546E2

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #2D78AB

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

Preview Lab → · Contrast checker → · Palette generator →