#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
RGBrgb(67, 112, 220)
HSLhsl(222, 69%, 56%)
HSVhsv(222, 70%, 86%)
CMYKcmyk(69.5%, 49.1%, 0%, 13.7%)
CIE-LABlab(49.43, 20.35, -59.84)
CIE-LCHlch(49.43, 63.21, 288.78°)
OKLaboklab(57.12% -0.0164 -0.1718)
OKLCHoklch(57.12% 0.173 264.5)
XYZxyz(21.0226, 17.9468, 70.0524)
Luminance0.1795 (WCAG relative)
Temperaturecool
Familyblue

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
##4370DC1.004.584.594.59
#FFFFFF4.581.0021.0021.00
#0000004.5921.001.001.00
##0000004.5921.001.001.00

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.

Preview Lab → · Contrast checker → · Palette generator →

#4370DC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva