#427CD0#427CD0

#427CD0 is a mid, vivid blue. Relative luminance 0.201; OKLCH L 58.8% C 0.143 H 257.8°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#427CD0
RGB	rgb(66, 124, 208)
HSL	hsl(215, 60%, 54%)
HSV	hsv(215, 68%, 82%)
CMYK	cmyk(68.3%, 40.4%, 0%, 18.4%)
CIE-LAB	lab(51.98, 8.47, -48.96)
CIE-LCH	lch(51.98, 49.69, 279.81°)
OKLab	oklab(58.84% -0.0302 -0.1396)
OKLCH	oklch(58.84% 0.143 257.8)
XYZ	xyz(20.8355, 20.1255, 62.4488)
Luminance	0.2013 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427CD0 #D09642

analogous

#42C3D0 #427CD0 #4F42D0

triadic

#427CD0 #D0427C #7CD042

tetradic

#427CD0 #D042C3 #D09642 #42D04F

square

#427CD0 #D042C3 #D09642 #42D04F

split-complementary

#427CD0 #D04F42 #C3D042

monochromatic

#1E4379 #2A5FAA #427CD0 #739EDC #A4C0E8

Accessibility & contrast

On white

4.18

#427CD0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#427CD0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427CD0

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427CD0	#FFFFFF	#000000	##000000
##427CD0	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5583D3

Deuteranopia (green-blind)

#3F76CE

Tritanopia (blue-blind)

#008F9C

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #427cd0;
/* rgb */ color: rgb(66, 124, 208);
/* oklch */ color: oklch(58.8% 0.143 257.8);

Tailwind

colors: {
  custom: {
    50: '#86a1df',
    500: '#427cd0',
    950: '#000000',
  },
}

SCSS

$custom: #427cd0;
$custom-light: #86a1df;
$custom-dark: #000000;

JSON

{
  "hex": "#427cd0",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 208
  },
  "hsl": {
    "h": 215.493,
    "s": 60.169,
    "l": 53.725
  },
  "oklch": {
    "l": 0.58835,
    "c": 0.14284,
    "h": 257.8
  },
  "luminance": 0.20128
}

Semantic roles & 50–950 ramp

primary

#427CD0

secondary

#D5BC99

accent

#A244E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #427CD0

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

Preview Lab → · Contrast checker → · Palette generator →