#4378AF#4378AF

#4378AF is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 56.1% C 0.103 H 250.9°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#4378AF
RGB	rgb(67, 120, 175)
HSL	hsl(211, 45%, 47%)
HSV	hsv(211, 62%, 69%)
CMYK	cmyk(61.7%, 31.4%, 0%, 31.4%)
CIE-LAB	lab(49.15, -0.42, -34.50)
CIE-LCH	lch(49.15, 34.50, 269.30°)
OKLab	oklab(56.08% -0.0337 -0.0974)
OKLCH	oklch(56.08% 0.103 250.9)
XYZ	xyz(16.7663, 17.7198, 43.0858)
Luminance	0.1772 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4378AF #AF7A43

analogous

#43AEAF #4378AF #4443AF

triadic

#4378AF #AF4378 #78AF43

tetradic

#4378AF #AF43AE #AF7A43 #43AF44

square

#4378AF #AF43AE #AF7A43 #43AF44

split-complementary

#4378AF #AF4443 #AEAF43

monochromatic

#213B56 #325A83 #4378AF #6997C6 #96B6D7

Accessibility & contrast

On white

4.62

#4378AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#4378AF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4378AF

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4378AF	#FFFFFF	#000000	##FFFFFF
##4378AF	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#617BB1

Deuteranopia (green-blind)

#5270AE

Tritanopia (blue-blind)

#00858C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4378af;
/* rgb */ color: rgb(67, 120, 175);
/* oklch */ color: oklch(56.1% 0.103 250.9);

Tailwind

colors: {
  custom: {
    50: '#819ec7',
    500: '#4378af',
    950: '#000000',
  },
}

SCSS

$custom: #4378af;
$custom-light: #819ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#4378af",
  "rgb": {
    "r": 67,
    "g": 120,
    "b": 175
  },
  "hsl": {
    "h": 210.556,
    "s": 44.628,
    "l": 47.451
  },
  "oklch": {
    "l": 0.56083,
    "c": 0.10303,
    "h": 250.9
  },
  "luminance": 0.17721
}

Semantic roles & 50–950 ramp

primary

#4378AF

secondary

#C2A78B

accent

#9553D4

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4378AF

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

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