#2D78BB#2D78BB

#2D78BB is a mid, vivid cyan. Relative luminance 0.176; OKLCH L 55.9% C 0.127 H 249.1°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#2D78BB
RGB	rgb(45, 120, 187)
HSL	hsl(208, 61%, 45%)
HSV	hsv(208, 76%, 73%)
CMYK	cmyk(75.9%, 35.8%, 0%, 26.7%)
CIE-LAB	lab(48.98, 0.33, -41.77)
CIE-LCH	lch(48.98, 41.77, 270.45°)
OKLab	oklab(55.93% -0.0453 -0.1188)
OKLCH	oklch(55.93% 0.127 249.1)
XYZ	xyz(16.7649, 17.5767, 49.5132)
Luminance	0.1758 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D78BB #BB702D

analogous

#2DBBB7 #2D78BB #2D31BB

triadic

#2D78BB #BB2D78 #78BB2D

tetradic

#2D78BB #B72DBB #BB702D #31BB2D

square

#2D78BB #B72DBB #BB702D #31BB2D

split-complementary

#2D78BB #BB2D31 #BBB72D

monochromatic

#153958 #21588A #2D78BB #5096D5 #82B4E1

Accessibility & contrast

On white

4.65

#2D78BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#2D78BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #2D78BB

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D78BB	#FFFFFF	#000000	##FFFFFF
##2D78BB	1.00	4.65	4.52	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#597CBE

Deuteranopia (green-blind)

#446EBA

Tritanopia (blue-blind)

#008890

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #2d78bb;
/* rgb */ color: rgb(45, 120, 187);
/* oklch */ color: oklch(55.9% 0.127 249.1);

Tailwind

colors: {
  custom: {
    50: '#7a9ed0',
    500: '#2d78bb',
    950: '#000000',
  },
}

SCSS

$custom: #2d78bb;
$custom-light: #7a9ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#2d78bb",
  "rgb": {
    "r": 45,
    "g": 120,
    "b": 187
  },
  "hsl": {
    "h": 208.31,
    "s": 61.207,
    "l": 45.49
  },
  "oklch": {
    "l": 0.55925,
    "c": 0.12718,
    "h": 249.1
  },
  "luminance": 0.17579
}

Semantic roles & 50–950 ramp

primary

#2D78BB

secondary

#CAA07A

accent

#8F43E4

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #2D78BB

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

Preview Lab → · Contrast checker → · Palette generator →