#2478BD#2478BD

#2478BD is a mid, vivid cyan. Relative luminance 0.175; OKLCH L 55.8% C 0.132 H 248.1°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#2478BD
RGB	rgb(36, 120, 189)
HSL	hsl(207, 68%, 44%)
HSV	hsv(207, 81%, 74%)
CMYK	cmyk(81%, 36.5%, 0%, 25.9%)
CIE-LAB	lab(48.86, 0.06, -43.12)
CIE-LCH	lch(48.86, 43.12, 270.09°)
OKLab	oklab(55.8% -0.0493 -0.1229)
OKLCH	oklch(55.8% 0.132 248.1)
XYZ	xyz(16.6258, 17.4801, 50.6320)
Luminance	0.1748 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2478BD #BD6924

analogous

#24BDB6 #2478BD #242BBD

triadic

#2478BD #BD2478 #78BD24

tetradic

#2478BD #B624BD #BD6924 #2BBD24

square

#2478BD #B624BD #BD6924 #2BBD24

split-complementary

#2478BD #BD242B #BDB624

monochromatic

#103756 #1A578A #2478BD #4397DB #76B3E5

Accessibility & contrast

On white

4.67

#2478BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#2478BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #2478BD

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2478BD	#FFFFFF	#000000	##FFFFFF
##2478BD	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#577CC0

Deuteranopia (green-blind)

#416EBC

Tritanopia (blue-blind)

#008991

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #2478bd;
/* rgb */ color: rgb(36, 120, 189);
/* oklch */ color: oklch(55.8% 0.132 248.1);

Tailwind

colors: {
  custom: {
    50: '#779ed1',
    500: '#2478bd',
    950: '#000000',
  },
}

SCSS

$custom: #2478bd;
$custom-light: #779ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#2478bd",
  "rgb": {
    "r": 36,
    "g": 120,
    "b": 189
  },
  "hsl": {
    "h": 207.059,
    "s": 68,
    "l": 44.118
  },
  "oklch": {
    "l": 0.55802,
    "c": 0.13242,
    "h": 248.1
  },
  "luminance": 0.17482
}

Semantic roles & 50–950 ramp

primary

#2478BD

secondary

#CC9A70

accent

#8B3DEB

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0E14

muted

#7C7E82

Preview Lab

Preview with #2478BD

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

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