#427BDE#427BDE

#427BDE is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.5% C 0.163 H 260.6°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX#427BDE
RGBrgb(66, 123, 222)
HSLhsl(218, 70%, 56%)
HSVhsv(218, 70%, 87%)
CMYKcmyk(70.3%, 44.6%, 0%, 12.9%)
CIE-LABlab(52.50, 14.07, -56.04)
CIE-LCHlch(52.50, 57.78, 284.10°)
OKLaboklab(59.5% -0.0265 -0.1604)
OKLCHoklch(59.5% 0.163 260.6)
XYZxyz(22.5098, 20.5957, 71.8821)
Luminance0.2060 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#427BDE #DEA542
analogous
#42C9DE #427BDE #5742DE
triadic
#427BDE #DE427B #7BDE42
tetradic
#427BDE #DE42C9 #DEA542 #42DE57
square
#427BDE #DE42C9 #DEA542 #42DE57
split-complementary
#427BDE #DE5742 #C9DE42
monochromatic
#19438D #225CC1 #427BDE #769FE7 #AAC4F0

Accessibility & contrast

On white

4.10
#427BDE on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.12
#427BDE on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427BDE
5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##427BDE#FFFFFF#000000##000000
##427BDE1.004.105.125.12
#FFFFFF4.101.0021.0021.00
#0000005.1221.001.001.00
##0000005.1221.001.001.00

Color blindness preview

Protanopia (red-blind)
#4985E2
Deuteranopia (green-blind)
#2B77DC
Tritanopia (blue-blind)
#0092A2
Achromatopsia (no color)
#7D7D7D

Design tokens & code

CSS
--color: #427bde;
/* rgb */ color: rgb(66, 123, 222);
/* oklch */ color: oklch(59.5% 0.163 260.6);
Tailwind
colors: {
  custom: {
    50: '#88a0e9',
    500: '#427bde',
    950: '#000000',
  },
}
SCSS
$custom: #427bde;
$custom-light: #88a0e9;
$custom-dark: #000000;
JSON
{
  "hex": "#427bde",
  "rgb": {
    "r": 66,
    "g": 123,
    "b": 222
  },
  "hsl": {
    "h": 218.077,
    "s": 70.27,
    "l": 56.471
  },
  "oklch": {
    "l": 0.59501,
    "c": 0.16259,
    "h": 260.6
  },
  "luminance": 0.20598
}

Semantic roles & 50–950 ramp

primary
#427BDE
secondary
#DEC79E
accent
#AC3BED
background
#F9F9FE
surface
#F1F2FD
border
#CBCCD5
text
#0D0E16
muted
#7E7E84

Preview Lab

Preview with #427BDE

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

Preview Lab → · Contrast checker → · Palette generator →

#427BDE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva