#4370C8#4370C8

#4370C8 is a mid, vivid blue. Relative luminance 0.170; OKLCH L 55.8% C 0.145 H 262.3°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#4370C8
RGB	rgb(67, 112, 200)
HSL	hsl(220, 55%, 52%)
HSV	hsv(220, 67%, 78%)
CMYK	cmyk(66.5%, 44%, 0%, 21.6%)
CIE-LAB	lab(48.20, 13.21, -50.44)
CIE-LCH	lch(48.20, 52.14, 284.68°)
OKLab	oklab(55.77% -0.0194 -0.1441)
OKLCH	oklch(55.77% 0.145 262.3)
XYZ	xyz(18.5306, 16.9500, 56.9275)
Luminance	0.1695 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4370C8 #C89B43

analogous

#43B3C8 #4370C8 #5843C8

triadic

#4370C8 #C84370 #70C843

tetradic

#4370C8 #C843B3 #C89B43 #43C858

square

#4370C8 #C843B3 #C89B43 #43C858

split-complementary

#4370C8 #C85843 #B3C843

monochromatic

#213C70 #2F559F #4370C8 #7294D6 #A2B8E4

Accessibility & contrast

On white

4.78

#4370C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#4370C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4370C8

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4370C8	#FFFFFF	#000000	##FFFFFF
##4370C8	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4679CB

Deuteranopia (green-blind)

#2F6DC6

Tritanopia (blue-blind)

#008492

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4370c8;
/* rgb */ color: rgb(67, 112, 200);
/* oklch */ color: oklch(55.8% 0.145 262.3);

Tailwind

colors: {
  custom: {
    50: '#8598d9',
    500: '#4370c8',
    950: '#000000',
  },
}

SCSS

$custom: #4370c8;
$custom-light: #8598d9;
$custom-dark: #000000;

JSON

{
  "hex": "#4370c8",
  "rgb": {
    "r": 67,
    "g": 112,
    "b": 200
  },
  "hsl": {
    "h": 219.699,
    "s": 54.733,
    "l": 52.353
  },
  "oklch": {
    "l": 0.55774,
    "c": 0.14541,
    "h": 262.3
  },
  "luminance": 0.16952
}

Semantic roles & 50–950 ramp

primary

#4370C8

secondary

#D0BD96

accent

#AC4ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4370C8

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

Preview Lab → · Contrast checker → · Palette generator →