#4379D9#4379D9

#4379D9 is a mid, vivid blue. Relative luminance 0.199; OKLCH L 58.8% C 0.158 H 260.9°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX#4379D9
RGBrgb(67, 121, 217)
HSLhsl(218, 66%, 56%)
HSVhsv(218, 69%, 85%)
CMYKcmyk(69.1%, 44.2%, 0%, 14.9%)
CIE-LABlab(51.70, 13.67, -54.51)
CIE-LCHlch(51.70, 56.20, 284.08°)
OKLaboklab(58.79% -0.0248 -0.1559)
OKLCHoklch(58.79% 0.158 260.9)
XYZxyz(21.6720, 19.8756, 68.3264)
Luminance0.1988 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4379D9 #D9A343
analogous
#43C4D9 #4379D9 #5843D9
triadic
#4379D9 #D94379 #79D943
tetradic
#4379D9 #D943C4 #D9A343 #43D958
square
#4379D9 #D943C4 #D9A343 #43D958
split-complementary
#4379D9 #D95843 #C4D943
monochromatic
#1B4286 #255BB9 #4379D9 #769DE3 #A9C2EE

Accessibility & contrast

On white

4.22
#4379D9 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.98
#4379D9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4379D9
4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4379D9#FFFFFF#000000##000000
##4379D91.004.224.984.98
#FFFFFF4.221.0021.0021.00
#0000004.9821.001.001.00
##0000004.9821.001.001.00

Color blindness preview

Protanopia (red-blind)
#4A83DD
Deuteranopia (green-blind)
#2E75D7
Tritanopia (blue-blind)
#008F9E
Achromatopsia (no color)
#7B7B7B

Design tokens & code

CSS
--color: #4379d9;
/* rgb */ color: rgb(67, 121, 217);
/* oklch */ color: oklch(58.8% 0.158 260.9);
Tailwind
colors: {
  custom: {
    50: '#889fe5',
    500: '#4379d9',
    950: '#000000',
  },
}
SCSS
$custom: #4379d9;
$custom-light: #889fe5;
$custom-dark: #000000;
JSON
{
  "hex": "#4379d9",
  "rgb": {
    "r": 67,
    "g": 121,
    "b": 217
  },
  "hsl": {
    "h": 218.4,
    "s": 66.372,
    "l": 55.686
  },
  "oklch": {
    "l": 0.58794,
    "c": 0.1579,
    "h": 260.9
  },
  "luminance": 0.19878
}

Semantic roles & 50–950 ramp

primary
#4379D9
secondary
#DBC59D
accent
#AC3FE9
background
#F9F9FE
surface
#F1F2FC
border
#CBCCD5
text
#0D0E16
muted
#7E7E84

Preview Lab

Preview with #4379D9

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

Preview Lab → · Contrast checker → · Palette generator →

#4379D9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva