#4378BD#4378BD

#4378BD is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 56.9% C 0.121 H 255.8°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4378BD
RGB	rgb(67, 120, 189)
HSL	hsl(214, 48%, 50%)
HSV	hsv(214, 65%, 74%)
CMYK	cmyk(64.6%, 36.5%, 0%, 25.9%)
CIE-LAB	lab(49.86, 4.40, -41.48)
CIE-LCH	lch(49.86, 41.71, 276.05°)
OKLab	oklab(56.86% -0.0298 -0.1177)
OKLCH	oklch(56.86% 0.121 255.8)
XYZ	xyz(18.2132, 18.2986, 50.7064)
Luminance	0.1830 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4378BD #BD8843

analogous

#43B5BD #4378BD #4B43BD

triadic

#4378BD #BD4378 #78BD43

tetradic

#4378BD #BD43B5 #BD8843 #43BD4B

square

#4378BD #BD43B5 #BD8843 #43BD4B

split-complementary

#4378BD #BD4B43 #B5BD43

monochromatic

#233F63 #335B90 #4378BD #7099CD #9EB9DD

Accessibility & contrast

On white

4.51

#4378BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#4378BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4378BD

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4378BD	#FFFFFF	#000000	##000000
##4378BD	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7DC0

Deuteranopia (green-blind)

#4971BC

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4378bd;
/* rgb */ color: rgb(67, 120, 189);
/* oklch */ color: oklch(56.9% 0.121 255.8);

Tailwind

colors: {
  custom: {
    50: '#839ed1',
    500: '#4378bd',
    950: '#000000',
  },
}

SCSS

$custom: #4378bd;
$custom-light: #839ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#4378bd",
  "rgb": {
    "r": 67,
    "g": 120,
    "b": 189
  },
  "hsl": {
    "h": 213.934,
    "s": 48.031,
    "l": 50.196
  },
  "oklch": {
    "l": 0.56862,
    "c": 0.12144,
    "h": 255.8
  },
  "luminance": 0.183
}

Semantic roles & 50–950 ramp

primary

#4378BD

secondary

#C9B193

accent

#9D50D8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4378BD

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

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