#427CDD#427CDD

#427CDD is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.6% C 0.160 H 260.1°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX#427CDD
RGBrgb(66, 124, 221)
HSLhsl(218, 70%, 56%)
HSVhsv(218, 70%, 87%)
CMYKcmyk(70.1%, 43.9%, 0%, 13.3%)
CIE-LABlab(52.72, 13.10, -55.13)
CIE-LCHlch(52.72, 56.66, 283.37°)
OKLaboklab(59.65% -0.0276 -0.1577)
OKLCHoklch(59.65% 0.16 260.1)
XYZxyz(22.5009, 20.7916, 71.2199)
Luminance0.2079 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#427CDD #DDA342
analogous
#42CADD #427CDD #5642DD
triadic
#427CDD #DD427C #7CDD42
tetradic
#427CDD #DD42CA #DDA342 #42DD56
square
#427CDD #DD42CA #DDA342 #42DD56
split-complementary
#427CDD #DD5642 #CADD42
monochromatic
#19448C #225DBF #427CDD #76A0E6 #AAC4F0

Accessibility & contrast

On white

4.07
#427CDD on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.16
#427CDD on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427CDD
5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##427CDD#FFFFFF#000000##000000
##427CDD1.004.075.165.16
#FFFFFF4.071.0021.0021.00
#0000005.1621.001.001.00
##0000005.1621.001.001.00

Color blindness preview

Protanopia (red-blind)
#4C85E1
Deuteranopia (green-blind)
#2F77DB
Tritanopia (blue-blind)
#0093A2
Achromatopsia (no color)
#7E7E7E

Design tokens & code

CSS
--color: #427cdd;
/* rgb */ color: rgb(66, 124, 221);
/* oklch */ color: oklch(59.6% 0.160 260.1);
Tailwind
colors: {
  custom: {
    50: '#88a1e8',
    500: '#427cdd',
    950: '#000000',
  },
}
SCSS
$custom: #427cdd;
$custom-light: #88a1e8;
$custom-dark: #000000;
JSON
{
  "hex": "#427cdd",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 221
  },
  "hsl": {
    "h": 217.548,
    "s": 69.507,
    "l": 56.275
  },
  "oklch": {
    "l": 0.59649,
    "c": 0.16011,
    "h": 260.1
  },
  "luminance": 0.20794
}

Semantic roles & 50–950 ramp

primary
#427CDD
secondary
#DDC59D
accent
#AA3BEC
background
#F9F9FE
surface
#F1F2FD
border
#CBCCD5
text
#0D0E16
muted
#7E7E84

Preview Lab

Preview with #427CDD

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

Preview Lab → · Contrast checker → · Palette generator →

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