#427EC8#427EC8

#427EC8 is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 58.8% C 0.130 H 254.9°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#427EC8
RGB	rgb(66, 126, 200)
HSL	hsl(213, 55%, 52%)
HSV	hsv(213, 67%, 78%)
CMYK	cmyk(67%, 37%, 0%, 21.6%)
CIE-LAB	lab(52.12, 4.43, -44.20)
CIE-LCH	lch(52.12, 44.42, 275.72°)
OKLab	oklab(58.8% -0.034 -0.1256)
OKLCH	oklch(58.8% 0.13 254.9)
XYZ	xyz(20.1291, 20.2480, 57.4798)
Luminance	0.2025 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427EC8 #C88C42

analogous

#42C1C8 #427EC8 #4942C8

triadic

#427EC8 #C8427E #7EC842

tetradic

#427EC8 #C842C1 #C88C42 #42C849

square

#427EC8 #C842C1 #C88C42 #42C849

split-complementary

#427EC8 #C84942 #C1C842

monochromatic

#20446F #2E619F #427EC8 #719ED6 #A1BFE4

Accessibility & contrast

On white

4.16

#427EC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#427EC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427EC8

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427EC8	#FFFFFF	#000000	##000000
##427EC8	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D83CB

Deuteranopia (green-blind)

#4A77C7

Tritanopia (blue-blind)

#008F99

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #427ec8;
/* rgb */ color: rgb(66, 126, 200);
/* oklch */ color: oklch(58.8% 0.130 254.9);

Tailwind

colors: {
  custom: {
    50: '#84a3d9',
    500: '#427ec8',
    950: '#000000',
  },
}

SCSS

$custom: #427ec8;
$custom-light: #84a3d9;
$custom-dark: #000000;

JSON

{
  "hex": "#427ec8",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 200
  },
  "hsl": {
    "h": 213.134,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.58802,
    "c": 0.13013,
    "h": 254.9
  },
  "luminance": 0.2025
}

Semantic roles & 50–950 ramp

primary

#427EC8

secondary

#D0B696

accent

#9C4ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0F14

muted

#7D7E83

Preview Lab

Preview with #427EC8

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

Preview Lab → · Contrast checker → · Palette generator →