#427EA7#427EA7

#427EA7 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.0% C 0.089 H 240.6°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#427EA7
RGB	rgb(66, 126, 167)
HSL	hsl(204, 43%, 46%)
HSV	hsv(204, 60%, 65%)
CMYK	cmyk(60.5%, 24.6%, 0%, 34.5%)
CIE-LAB	lab(50.53, -6.84, -27.71)
CIE-LCH	lch(50.53, 28.54, 256.12°)
OKLab	oklab(57.04% -0.0437 -0.0777)
OKLCH	oklch(57.04% 0.089 240.6)
XYZ	xyz(16.6801, 18.8684, 39.3147)
Luminance	0.1887 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427EA7 #A76B42

analogous

#42A79D #427EA7 #424BA7

triadic

#427EA7 #A7427E #7EA742

tetradic

#427EA7 #9D42A7 #A76B42 #4BA742

square

#427EA7 #9D42A7 #A76B42 #4BA742

split-complementary

#427EA7 #A7424B #A79D42

monochromatic

#1F3C4F #315D7B #427EA7 #649CC2 #90B8D3

Accessibility & contrast

On white

4.40

#427EA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#427EA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427EA7

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427EA7	#FFFFFF	#000000	##000000
##427EA7	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7EA9

Deuteranopia (green-blind)

#5E74A6

Tritanopia (blue-blind)

#00888C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #427ea7;
/* rgb */ color: rgb(66, 126, 167);
/* oklch */ color: oklch(57.0% 0.089 240.6);

Tailwind

colors: {
  custom: {
    50: '#7fa3c1',
    500: '#427ea7',
    950: '#000000',
  },
}

SCSS

$custom: #427ea7;
$custom-light: #7fa3c1;
$custom-dark: #000000;

JSON

{
  "hex": "#427ea7",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 167
  },
  "hsl": {
    "h": 204.356,
    "s": 43.348,
    "l": 45.686
  },
  "oklch": {
    "l": 0.57038,
    "c": 0.08915,
    "h": 240.6
  },
  "luminance": 0.1887
}

Semantic roles & 50–950 ramp

primary

#427EA7

secondary

#BE9D86

accent

#8855D3

background

#F8FAFB

surface

#EFF3F7

border

#CACDD0

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #427EA7

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

Preview Lab → · Contrast checker → · Palette generator →