#2478D9#2478D9

#2478D9 is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.6% C 0.168 H 255.2°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#2478D9
RGB	rgb(36, 120, 217)
HSL	hsl(212, 72%, 50%)
HSV	hsv(212, 83%, 85%)
CMYK	cmyk(83.4%, 44.7%, 0%, 14.9%)
CIE-LAB	lab(50.47, 10.70, -56.53)
CIE-LCH	lch(50.47, 57.53, 280.72°)
OKLab	oklab(57.58% -0.0429 -0.1623)
OKLCH	oklch(57.58% 0.168 255.2)
XYZ	xyz(19.9637, 18.8153, 68.2117)
Luminance	0.1882 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2478D9 #D98524

analogous

#24D3D9 #2478D9 #2B24D9

triadic

#2478D9 #D92478 #78D924

tetradic

#2478D9 #D924D3 #D98524 #24D92B

square

#2478D9 #D924D3 #D98524 #24D92B

split-complementary

#2478D9 #D92B24 #D3D924

monochromatic

#133E70 #1B5BA5 #2478D9 #5798E3 #8CB8EC

Accessibility & contrast

On white

4.41

#2478D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#2478D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2478D9

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2478D9	#FFFFFF	#000000	##000000
##2478D9	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4481DD

Deuteranopia (green-blind)

#1971D7

Tritanopia (blue-blind)

#008F9E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #2478d9;
/* rgb */ color: rgb(36, 120, 217);
/* oklch */ color: oklch(57.6% 0.168 255.2);

Tailwind

colors: {
  custom: {
    50: '#7e9ee5',
    500: '#2478d9',
    950: '#000000',
  },
}

SCSS

$custom: #2478d9;
$custom-light: #7e9ee5;
$custom-dark: #000000;

JSON

{
  "hex": "#2478d9",
  "rgb": {
    "r": 36,
    "g": 120,
    "b": 217
  },
  "hsl": {
    "h": 212.155,
    "s": 71.542,
    "l": 49.608
  },
  "oklch": {
    "l": 0.57581,
    "c": 0.16785,
    "h": 255.2
  },
  "luminance": 0.18818
}

Semantic roles & 50–950 ramp

primary

#2478D9

secondary

#D6AF83

accent

#9A3AEE

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #2478D9

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

Preview Lab → · Contrast checker → · Palette generator →