#2D78B8#2D78B8

#2D78B8 is a mid, vivid cyan. Relative luminance 0.175; OKLCH L 55.8% C 0.123 H 248.1°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#2D78B8
RGB	rgb(45, 120, 184)
HSL	hsl(208, 61%, 45%)
HSV	hsv(208, 76%, 72%)
CMYK	cmyk(75.5%, 34.8%, 0%, 27.8%)
CIE-LAB	lab(48.82, -0.78, -40.28)
CIE-LCH	lch(48.82, 40.29, 268.89°)
OKLab	oklab(55.75% -0.0461 -0.1145)
OKLCH	oklch(55.75% 0.123 248.1)
XYZ	xyz(16.4471, 17.4496, 47.8394)
Luminance	0.1745 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D78B8 #B86D2D

analogous

#2DB8B3 #2D78B8 #2D32B8

triadic

#2D78B8 #B82D78 #78B82D

tetradic

#2D78B8 #B32DB8 #B86D2D #32B82D

square

#2D78B8 #B32DB8 #B86D2D #32B82D

split-complementary

#2D78B8 #B82D32 #B8B32D

monochromatic

#153856 #215887 #2D78B8 #4E96D4 #80B4E0

Accessibility & contrast

On white

4.68

#2D78B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#2D78B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2D78B8

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D78B8	#FFFFFF	#000000	##FFFFFF
##2D78B8	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7BBB

Deuteranopia (green-blind)

#466EB7

Tritanopia (blue-blind)

#00878F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #2d78b8;
/* rgb */ color: rgb(45, 120, 184);
/* oklch */ color: oklch(55.8% 0.123 248.1);

Tailwind

colors: {
  custom: {
    50: '#799ecd',
    500: '#2d78b8',
    950: '#000000',
  },
}

SCSS

$custom: #2d78b8;
$custom-light: #799ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#2d78b8",
  "rgb": {
    "r": 45,
    "g": 120,
    "b": 184
  },
  "hsl": {
    "h": 207.626,
    "s": 60.699,
    "l": 44.902
  },
  "oklch": {
    "l": 0.55751,
    "c": 0.12345,
    "h": 248.1
  },
  "luminance": 0.17452
}

Semantic roles & 50–950 ramp

primary

#2D78B8

secondary

#C99D78

accent

#8E44E4

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2D78B8

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

Preview Lab → · Contrast checker → · Palette generator →