#4378B0#4378B0

#4378B0 is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 56.1% C 0.104 H 251.3°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX#4378B0
RGBrgb(67, 120, 176)
HSLhsl(211, 45%, 48%)
HSVhsv(211, 62%, 69%)
CMYKcmyk(61.9%, 31.8%, 0%, 31%)
CIE-LABlab(49.20, -0.08, -35.00)
CIE-LCHlch(49.20, 35.00, 269.87°)
OKLaboklab(56.14% -0.0334 -0.0988)
OKLCHoklch(56.14% 0.104 251.3)
XYZxyz(16.8648, 17.7592, 43.6050)
Luminance0.1776 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4378B0 #B07B43
analogous
#43AEB0 #4378B0 #4543B0
triadic
#4378B0 #B04378 #78B043
tetradic
#4378B0 #B043AE #B07B43 #43B045
square
#4378B0 #B043AE #B07B43 #43B045
split-complementary
#4378B0 #B04543 #AEB043
monochromatic
#213C57 #325A84 #4378B0 #6A97C6 #96B6D7

Accessibility & contrast

On white

4.61
#4378B0 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.55
#4378B0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4378B0
4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4378B0#FFFFFF#000000##FFFFFF
##4378B01.004.614.554.61
#FFFFFF4.611.0021.001.00
#0000004.5521.001.0021.00
##FFFFFF4.611.0021.001.00

Color blindness preview

Protanopia (red-blind)
#607BB2
Deuteranopia (green-blind)
#5170AF
Tritanopia (blue-blind)
#00858C
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #4378b0;
/* rgb */ color: rgb(67, 120, 176);
/* oklch */ color: oklch(56.1% 0.104 251.3);
Tailwind
colors: {
  custom: {
    50: '#819ec8',
    500: '#4378b0',
    950: '#000000',
  },
}
SCSS
$custom: #4378b0;
$custom-light: #819ec8;
$custom-dark: #000000;
JSON
{
  "hex": "#4378b0",
  "rgb": {
    "r": 67,
    "g": 120,
    "b": 176
  },
  "hsl": {
    "h": 210.826,
    "s": 44.856,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56137,
    "c": 0.10432,
    "h": 251.3
  },
  "luminance": 0.17761
}

Semantic roles & 50–950 ramp

primary
#4378B0
secondary
#C3A88C
accent
#9653D5
background
#F8F9FC
surface
#EFF2F8
border
#CACCD1
text
#0B0E13
muted
#7C7E82

Preview Lab

Preview with #4378B0

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

Preview Lab → · Contrast checker → · Palette generator →

#4378B0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva