#427FC4#427FC4

#427FC4 is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 58.8% C 0.124 H 253.1°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#427FC4
RGB	rgb(66, 127, 196)
HSL	hsl(212, 52%, 51%)
HSV	hsv(212, 66%, 77%)
CMYK	cmyk(66.3%, 35.2%, 0%, 23.1%)
CIE-LAB	lab(52.20, 2.43, -41.79)
CIE-LCH	lch(52.20, 41.86, 273.32°)
OKLab	oklab(58.8% -0.036 -0.1186)
OKLCH	oklch(58.8% 0.124 253.1)
XYZ	xyz(19.7963, 20.3205, 55.0928)
Luminance	0.2032 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427FC4 #C48742

analogous

#42C0C4 #427FC4 #4642C4

triadic

#427FC4 #C4427F #7FC442

tetradic

#427FC4 #C442C0 #C48742 #42C446

square

#427FC4 #C442C0 #C48742 #42C446

split-complementary

#427FC4 #C44642 #C0C442

monochromatic

#21446A #306199 #427FC4 #719FD3 #9FBEE1

Accessibility & contrast

On white

4.15

#427FC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#427FC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427FC4

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427FC4	#FFFFFF	#000000	##000000
##427FC4	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6183C7

Deuteranopia (green-blind)

#4E77C3

Tritanopia (blue-blind)

#008F98

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #427fc4;
/* rgb */ color: rgb(66, 127, 196);
/* oklch */ color: oklch(58.8% 0.124 253.1);

Tailwind

colors: {
  custom: {
    50: '#84a3d6',
    500: '#427fc4',
    950: '#000000',
  },
}

SCSS

$custom: #427fc4;
$custom-light: #84a3d6;
$custom-dark: #000000;

JSON

{
  "hex": "#427fc4",
  "rgb": {
    "r": 66,
    "g": 127,
    "b": 196
  },
  "hsl": {
    "h": 211.846,
    "s": 52.419,
    "l": 51.373
  },
  "oklch": {
    "l": 0.58798,
    "c": 0.1239,
    "h": 253.1
  },
  "luminance": 0.20323
}

Semantic roles & 50–950 ramp

primary

#427FC4

secondary

#CEB394

accent

#984CDC

background

#F8FAFD

surface

#F0F3FA

border

#CBCDD3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #427FC4

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

Preview Lab → · Contrast checker → · Palette generator →