#4378B9#4378B9

#4378B9 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.6% C 0.116 H 254.6°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX#4378B9
RGBrgb(67, 120, 185)
HSLhsl(213, 47%, 49%)
HSVhsv(213, 64%, 73%)
CMYKcmyk(63.8%, 35.1%, 0%, 27.5%)
CIE-LABlab(49.65, 3.01, -39.50)
CIE-LCHlch(49.65, 39.61, 274.36°)
OKLaboklab(56.63% -0.0309 -0.1119)
OKLCHoklch(56.63% 0.116 254.6)
XYZxyz(17.7850, 18.1273, 48.4512)
Luminance0.1813 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4378B9 #B98443
analogous
#43B3B9 #4378B9 #4943B9
triadic
#4378B9 #B94378 #78B943
tetradic
#4378B9 #B943B3 #B98443 #43B949
square
#4378B9 #B943B3 #B98443 #43B949
split-complementary
#4378B9 #B94943 #B3B943
monochromatic
#223E5F #335B8C #4378B9 #6F98CB #9BB8DB

Accessibility & contrast

On white

4.54
#4378B9 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.63
#4378B9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4378B9
4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4378B9#FFFFFF#000000##000000
##4378B91.004.544.634.63
#FFFFFF4.541.0021.0021.00
#0000004.6321.001.001.00
##0000004.6321.001.001.00

Color blindness preview

Protanopia (red-blind)
#5C7CBC
Deuteranopia (green-blind)
#4C71B8
Tritanopia (blue-blind)
#008790
Achromatopsia (no color)
#767676

Design tokens & code

CSS
--color: #4378b9;
/* rgb */ color: rgb(67, 120, 185);
/* oklch */ color: oklch(56.6% 0.116 254.6);
Tailwind
colors: {
  custom: {
    50: '#829ece',
    500: '#4378b9',
    950: '#000000',
  },
}
SCSS
$custom: #4378b9;
$custom-light: #829ece;
$custom-dark: #000000;
JSON
{
  "hex": "#4378b9",
  "rgb": {
    "r": 67,
    "g": 120,
    "b": 185
  },
  "hsl": {
    "h": 213.051,
    "s": 46.825,
    "l": 49.412
  },
  "oklch": {
    "l": 0.56634,
    "c": 0.11613,
    "h": 254.6
  },
  "luminance": 0.18129
}

Semantic roles & 50–950 ramp

primary
#4378B9
secondary
#C7AF91
accent
#9B51D6
background
#F8F9FC
surface
#F0F2F9
border
#CBCCD2
text
#0B0E13
muted
#7C7E82

Preview Lab

Preview with #4378B9

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

Preview Lab → · Contrast checker → · Palette generator →

#4378B9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva