#4275D7#4275D7

#4275D7 is a mid, vivid blue. Relative luminance 0.188; OKLCH L 57.8% C 0.160 H 262.0°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX#4275D7
RGBrgb(66, 117, 215)
HSLhsl(219, 65%, 55%)
HSVhsv(219, 69%, 84%)
CMYKcmyk(69.3%, 45.6%, 0%, 15.7%)
CIE-LABlab(50.43, 15.29, -55.40)
CIE-LCHlch(50.43, 57.47, 285.43°)
OKLaboklab(57.77% -0.0223 -0.1586)
OKLCHoklch(57.77% 0.16 262)
XYZxyz(20.8694, 18.7850, 66.8028)
Luminance0.1879 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4275D7 #D7A442
analogous
#42C0D7 #4275D7 #5942D7
triadic
#4275D7 #D74275 #75D742
tetradic
#4275D7 #D742C0 #D7A442 #42D759
square
#4275D7 #D742C0 #D7A442 #42D759
split-complementary
#4275D7 #D75942 #C0D742
monochromatic
#1C3F83 #2657B5 #4275D7 #759AE2 #A7BFEC

Accessibility & contrast

On white

4.41
#4275D7 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.76
#4275D7 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4275D7
4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4275D7#FFFFFF#000000##000000
##4275D71.004.414.764.76
#FFFFFF4.411.0021.0021.00
#0000004.7621.001.001.00
##0000004.7621.001.001.00

Color blindness preview

Protanopia (red-blind)
#437FDB
Deuteranopia (green-blind)
#2572D5
Tritanopia (blue-blind)
#008C9B
Achromatopsia (no color)
#787878

Design tokens & code

CSS
--color: #4275d7;
/* rgb */ color: rgb(66, 117, 215);
/* oklch */ color: oklch(57.8% 0.160 262.0);
Tailwind
colors: {
  custom: {
    50: '#879ce4',
    500: '#4275d7',
    950: '#000000',
  },
}
SCSS
$custom: #4275d7;
$custom-light: #879ce4;
$custom-dark: #000000;
JSON
{
  "hex": "#4275d7",
  "rgb": {
    "r": 66,
    "g": 117,
    "b": 215
  },
  "hsl": {
    "h": 219.463,
    "s": 65.066,
    "l": 55.098
  },
  "oklch": {
    "l": 0.57774,
    "c": 0.16021,
    "h": 262
  },
  "luminance": 0.18787
}

Semantic roles & 50–950 ramp

primary
#4275D7
secondary
#DAC49B
accent
#AE40E8
background
#F8F9FE
surface
#F0F2FC
border
#CBCCD5
text
#0D0E16
muted
#7D7E84

Preview Lab

Preview with #4275D7

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

Preview Lab → · Contrast checker → · Palette generator →

#4275D7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva