#426ECB#426ECB

#426ECB is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.5% C 0.152 H 263.3°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX#426ECB
RGBrgb(66, 110, 203)
HSLhsl(221, 57%, 53%)
HSVhsv(221, 67%, 80%)
CMYKcmyk(67.5%, 45.8%, 0%, 20.4%)
CIE-LABlab(47.78, 15.38, -52.83)
CIE-LCHlch(47.78, 55.02, 286.23°)
OKLaboklab(55.5% -0.0179 -0.1512)
OKLCHoklch(55.5% 0.152 263.3)
XYZxyz(18.5984, 16.6201, 58.7162)
Luminance0.1662 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#426ECB #CB9F42
analogous
#42B2CB #426ECB #5B42CB
triadic
#426ECB #CB426E #6ECB42
tetradic
#426ECB #CB42B2 #CB9F42 #42CB5B
square
#426ECB #CB42B2 #CB9F42 #42CB5B
split-complementary
#426ECB #CB5B42 #B2CB42
monochromatic
#203A73 #2D53A3 #426ECB #7293D8 #A2B8E5

Accessibility & contrast

On white

4.86
#426ECB on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.32
#426ECB on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #426ECB
4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##426ECB#FFFFFF#000000##FFFFFF
##426ECB1.004.864.324.86
#FFFFFF4.861.0021.001.00
#0000004.3221.001.0021.00
##FFFFFF4.861.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3F78CE
Deuteranopia (green-blind)
#246BC9
Tritanopia (blue-blind)
#008492
Achromatopsia (no color)
#717171

Design tokens & code

CSS
--color: #426ecb;
/* rgb */ color: rgb(66, 110, 203);
/* oklch */ color: oklch(55.5% 0.152 263.3);
Tailwind
colors: {
  custom: {
    50: '#8597db',
    500: '#426ecb',
    950: '#000000',
  },
}
SCSS
$custom: #426ecb;
$custom-light: #8597db;
$custom-dark: #000000;
JSON
{
  "hex": "#426ecb",
  "rgb": {
    "r": 66,
    "g": 110,
    "b": 203
  },
  "hsl": {
    "h": 220.73,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.55498,
    "c": 0.15223,
    "h": 263.3
  },
  "luminance": 0.16622
}

Semantic roles & 50–950 ramp

primary
#426ECB
secondary
#D2BF97
accent
#AF48E0
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0D15
muted
#7D7E83

Preview Lab

Preview with #426ECB

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

Preview Lab → · Contrast checker → · Palette generator →

#426ECB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva