#427BC5#427BC5

#427BC5 is a mid, vivid cyan. Relative luminance 0.194; OKLCH L 58.0% C 0.129 H 255.8°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#427BC5
RGB	rgb(66, 123, 197)
HSL	hsl(214, 53%, 52%)
HSV	hsv(214, 66%, 77%)
CMYK	cmyk(66.5%, 37.6%, 0%, 22.7%)
CIE-LAB	lab(51.10, 5.20, -44.10)
CIE-LCH	lch(51.10, 44.41, 276.72°)
OKLab	oklab(57.96% -0.0317 -0.1254)
OKLCH	oklch(57.96% 0.129 255.8)
XYZ	xyz(19.4041, 19.3534, 55.5255)
Luminance	0.1935 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427BC5 #C58C42

analogous

#42BDC5 #427BC5 #4B42C5

triadic

#427BC5 #C5427B #7BC542

tetradic

#427BC5 #C542BD #C58C42 #42C54B

square

#427BC5 #C542BD #C58C42 #42C54B

split-complementary

#427BC5 #C54B42 #BDC542

monochromatic

#21416C #2F5E9A #427BC5 #719CD3 #A0BCE2

Accessibility & contrast

On white

4.31

#427BC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#427BC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427BC5

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427BC5	#FFFFFF	#000000	##000000
##427BC5	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A80C8

Deuteranopia (green-blind)

#4774C3

Tritanopia (blue-blind)

#008C96

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #427bc5;
/* rgb */ color: rgb(66, 123, 197);
/* oklch */ color: oklch(58.0% 0.129 255.8);

Tailwind

colors: {
  custom: {
    50: '#84a0d7',
    500: '#427bc5',
    950: '#000000',
  },
}

SCSS

$custom: #427bc5;
$custom-light: #84a0d7;
$custom-dark: #000000;

JSON

{
  "hex": "#427bc5",
  "rgb": {
    "r": 66,
    "g": 123,
    "b": 197
  },
  "hsl": {
    "h": 213.893,
    "s": 53.036,
    "l": 51.569
  },
  "oklch": {
    "l": 0.57956,
    "c": 0.12932,
    "h": 255.8
  },
  "luminance": 0.19355
}

Semantic roles & 50–950 ramp

primary

#427BC5

secondary

#CEB595

accent

#9D4BDC

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #427BC5

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

Preview Lab → · Contrast checker → · Palette generator →