#427EA8#427EA8

#427EA8 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.1% C 0.090 H 241.3°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#427EA8
RGB	rgb(66, 126, 168)
HSL	hsl(205, 44%, 46%)
HSV	hsv(205, 61%, 66%)
CMYK	cmyk(60.7%, 25%, 0%, 34.1%)
CIE-LAB	lab(50.58, -6.51, -28.22)
CIE-LCH	lch(50.58, 28.96, 257.00°)
OKLab	oklab(57.09% -0.0434 -0.0792)
OKLCH	oklch(57.09% 0.09 241.3)
XYZ	xyz(16.7729, 18.9055, 39.8034)
Luminance	0.1891 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427EA8 #A86C42

analogous

#42A89F #427EA8 #424BA8

triadic

#427EA8 #A8427E #7EA842

tetradic

#427EA8 #9F42A8 #A86C42 #4BA842

square

#427EA8 #9F42A8 #A86C42 #4BA842

split-complementary

#427EA8 #A8424B #A89F42

monochromatic

#1F3C50 #315D7C #427EA8 #659CC2 #91B8D4

Accessibility & contrast

On white

4.39

#427EA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#427EA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427EA8

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427EA8	#FFFFFF	#000000	##000000
##427EA8	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7EAA

Deuteranopia (green-blind)

#5D74A7

Tritanopia (blue-blind)

#00888C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #427ea8;
/* rgb */ color: rgb(66, 126, 168);
/* oklch */ color: oklch(57.1% 0.090 241.3);

Tailwind

colors: {
  custom: {
    50: '#7fa3c2',
    500: '#427ea8',
    950: '#000000',
  },
}

SCSS

$custom: #427ea8;
$custom-light: #7fa3c2;
$custom-dark: #000000;

JSON

{
  "hex": "#427ea8",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 168
  },
  "hsl": {
    "h": 204.706,
    "s": 43.59,
    "l": 45.882
  },
  "oklch": {
    "l": 0.57087,
    "c": 0.09026,
    "h": 241.3
  },
  "luminance": 0.18907
}

Semantic roles & 50–950 ramp

primary

#427EA8

secondary

#BF9E87

accent

#8954D3

background

#F8FAFB

surface

#EFF3F7

border

#CACDD0

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #427EA8

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

Preview Lab → · Contrast checker → · Palette generator →