#427CFF#427CFF

#427CFF is a mid, highly saturated blue. Relative luminance 0.228; OKLCH L 62.0% C 0.205 H 263.6°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#427CFF
RGB	rgb(66, 124, 255)
HSL	hsl(222, 100%, 63%)
HSV	hsv(222, 74%, 100%)
CMYK	cmyk(74.1%, 51.4%, 0%, 0%)
CIE-LAB	lab(54.86, 25.28, -70.63)
CIE-LCH	lch(54.86, 75.02, 289.69°)
OKLab	oklab(61.97% -0.0229 -0.2033)
OKLCH	oklch(61.97% 0.205 263.6)
XYZ	xyz(27.4980, 22.7905, 97.5381)
Luminance	0.2279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427CFF #FFC542

analogous

#42DBFF #427CFF #6642FF

triadic

#427CFF #FF427C #7CFF42

tetradic

#427CFF #FF42DB #FFC542 #42FF66

square

#427CFF #FF42DB #FFC542 #42FF66

split-complementary

#427CFF #FF6642 #DBFF42

monochromatic

#003DC7 #0552FF #427CFF #7FA6FF #BCD1FF

Accessibility & contrast

On white

3.78

#427CFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#427CFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427CFF

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427CFF	#FFFFFF	#000000	##000000
##427CFF	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#218CFF

Deuteranopia (green-blind)

#007BFC

Tritanopia (blue-blind)

#009CB2

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #427cff;
/* rgb */ color: rgb(66, 124, 255);
/* oklch */ color: oklch(62.0% 0.205 263.6);

Tailwind

colors: {
  custom: {
    50: '#8fa1ff',
    500: '#427cff',
    950: '#000000',
  },
}

SCSS

$custom: #427cff;
$custom-light: #8fa1ff;
$custom-dark: #000000;

JSON

{
  "hex": "#427cff",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 255
  },
  "hsl": {
    "h": 221.587,
    "s": 100,
    "l": 62.941
  },
  "oklch": {
    "l": 0.61967,
    "c": 0.20462,
    "h": 263.6
  },
  "luminance": 0.22794
}

Semantic roles & 50–950 ramp

primary

#427CFF

secondary

#F0DCAC

accent

#9F00E6

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E18

muted

#7E7E86

Preview Lab

Preview with #427CFF

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

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