#427EA6#427EA6

#427EA6 is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 57.0% C 0.088 H 240.0°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#427EA6
RGB	rgb(66, 126, 166)
HSL	hsl(204, 43%, 45%)
HSV	hsv(204, 60%, 65%)
CMYK	cmyk(60.2%, 24.1%, 0%, 34.9%)
CIE-LAB	lab(50.49, -7.17, -27.19)
CIE-LCH	lch(50.49, 28.12, 255.22°)
OKLab	oklab(56.99% -0.0441 -0.0762)
OKLCH	oklch(56.99% 0.088 240)
XYZ	xyz(16.5880, 18.8316, 38.8297)
Luminance	0.1883 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427EA6 #A66A42

analogous

#42A69C #427EA6 #424CA6

triadic

#427EA6 #A6427E #7EA642

tetradic

#427EA6 #9C42A6 #A66A42 #4CA642

square

#427EA6 #9C42A6 #A66A42 #4CA642

split-complementary

#427EA6 #A6424C #A69C42

monochromatic

#1F3C4E #315D7A #427EA6 #649CC1 #90B8D3

Accessibility & contrast

On white

4.41

#427EA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#427EA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427EA6

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427EA6	#FFFFFF	#000000	##000000
##427EA6	1.00	4.41	4.77	4.77
#FFFFFF	4.41	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)

#6C7EA8

Deuteranopia (green-blind)

#5E74A5

Tritanopia (blue-blind)

#00888C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #427ea6;
/* rgb */ color: rgb(66, 126, 166);
/* oklch */ color: oklch(57.0% 0.088 240.0);

Tailwind

colors: {
  custom: {
    50: '#7fa3c0',
    500: '#427ea6',
    950: '#000000',
  },
}

SCSS

$custom: #427ea6;
$custom-light: #7fa3c0;
$custom-dark: #000000;

JSON

{
  "hex": "#427ea6",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 166
  },
  "hsl": {
    "h": 204,
    "s": 43.103,
    "l": 45.49
  },
  "oklch": {
    "l": 0.56989,
    "c": 0.08803,
    "h": 240
  },
  "luminance": 0.18833
}

Semantic roles & 50–950 ramp

primary

#427EA6

secondary

#BE9C86

accent

#8755D3

background

#F8FAFB

surface

#EFF3F7

border

#CACDD0

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #427EA6

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

Preview Lab → · Contrast checker → · Palette generator →