#4370DC#4370DC

#4370DC is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.1% C 0.173 H 264.5°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#4370DC
RGB	rgb(67, 112, 220)
HSL	hsl(222, 69%, 56%)
HSV	hsv(222, 70%, 86%)
CMYK	cmyk(69.5%, 49.1%, 0%, 13.7%)
CIE-LAB	lab(49.43, 20.35, -59.84)
CIE-LCH	lch(49.43, 63.21, 288.78°)
OKLab	oklab(57.12% -0.0164 -0.1718)
OKLCH	oklch(57.12% 0.173 264.5)
XYZ	xyz(21.0226, 17.9468, 70.0524)
Luminance	0.1795 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4370DC #DCAF43

analogous

#43BDDC #4370DC #6343DC

triadic

#4370DC #DC4370 #70DC43

tetradic

#4370DC #DC43BD #DCAF43 #43DC63

square

#4370DC #DC43BD #DCAF43 #43DC63

split-complementary

#4370DC #DC6343 #BDDC43

monochromatic

#1A3B8B #2351BE #4370DC #7797E6 #AABEEF

Accessibility & contrast

On white

4.58

#4370DC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#4370DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4370DC

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4370DC	#FFFFFF	#000000	##000000
##4370DC	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#327DE0

Deuteranopia (green-blind)

#006FDA

Tritanopia (blue-blind)

#00899B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4370dc;
/* rgb */ color: rgb(67, 112, 220);
/* oklch */ color: oklch(57.1% 0.173 264.5);

Tailwind

colors: {
  custom: {
    50: '#8998e7',
    500: '#4370dc',
    950: '#000000',
  },
}

SCSS

$custom: #4370dc;
$custom-light: #8998e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4370dc",
  "rgb": {
    "r": 67,
    "g": 112,
    "b": 220
  },
  "hsl": {
    "h": 222.353,
    "s": 68.61,
    "l": 56.275
  },
  "oklch": {
    "l": 0.57117,
    "c": 0.17255,
    "h": 264.5
  },
  "luminance": 0.17949
}

Semantic roles & 50–950 ramp

primary

#4370DC

secondary

#DDCA9E

accent

#B83CEB

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4370DC

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

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