#4370D8#4370D8

#4370D8 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.8% C 0.167 H 264.2°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX#4370D8
RGBrgb(67, 112, 216)
HSLhsl(222, 66%, 55%)
HSVhsv(222, 69%, 85%)
CMYKcmyk(69%, 48.1%, 0%, 15.3%)
CIE-LABlab(49.18, 18.92, -57.99)
CIE-LCHlch(49.18, 61.00, 288.07°)
OKLaboklab(56.84% -0.0169 -0.1663)
OKLCHoklch(56.84% 0.167 264.2)
XYZxyz(20.4992, 17.7374, 67.2958)
Luminance0.1774 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4370D8 #D8AB43
analogous
#43BBD8 #4370D8 #6043D8
triadic
#4370D8 #D84370 #70D843
tetradic
#4370D8 #D843BB #D8AB43 #43D860
square
#4370D8 #D843BB #D8AB43 #43D860
split-complementary
#4370D8 #D86043 #BBD843
monochromatic
#1C3B85 #2652B8 #4370D8 #7697E3 #A8BDED

Accessibility & contrast

On white

4.62
#4370D8 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.55
#4370D8 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4370D8
4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4370D8#FFFFFF#000000##FFFFFF
##4370D81.004.624.554.62
#FFFFFF4.621.0021.001.00
#0000004.5521.001.0021.00
##FFFFFF4.621.0021.001.00

Color blindness preview

Protanopia (red-blind)
#377CDC
Deuteranopia (green-blind)
#0C6ED6
Tritanopia (blue-blind)
#00889A
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #4370d8;
/* rgb */ color: rgb(67, 112, 216);
/* oklch */ color: oklch(56.8% 0.167 264.2);
Tailwind
colors: {
  custom: {
    50: '#8898e5',
    500: '#4370d8',
    950: '#000000',
  },
}
SCSS
$custom: #4370d8;
$custom-light: #8898e5;
$custom-dark: #000000;
JSON
{
  "hex": "#4370d8",
  "rgb": {
    "r": 67,
    "g": 112,
    "b": 216
  },
  "hsl": {
    "h": 221.879,
    "s": 65.639,
    "l": 55.49
  },
  "oklch": {
    "l": 0.56841,
    "c": 0.16717,
    "h": 264.2
  },
  "luminance": 0.1774
}

Semantic roles & 50–950 ramp

primary
#4370D8
secondary
#DAC89C
accent
#B53FE9
background
#F9F9FE
surface
#F1F2FC
border
#CBCCD5
text
#0D0D16
muted
#7E7E84

Preview Lab

Preview with #4370D8

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

Preview Lab → · Contrast checker → · Palette generator →

#4370D8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva