#427DB1#427DB1

#427DB1 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.3% C 0.102 H 247.2°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#427DB1
RGB	rgb(66, 125, 177)
HSL	hsl(208, 46%, 48%)
HSV	hsv(208, 63%, 69%)
CMYK	cmyk(62.7%, 29.4%, 0%, 30.6%)
CIE-LAB	lab(50.69, -2.92, -33.26)
CIE-LCH	lch(50.69, 33.39, 264.99°)
OKLab	oklab(57.31% -0.0393 -0.0937)
OKLCH	oklch(57.31% 0.102 247.2)
XYZ	xyz(17.5133, 18.9981, 44.3305)
Luminance	0.1900 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427DB1 #B17642

analogous

#42B1AD #427DB1 #4246B1

triadic

#427DB1 #B1427D #7DB142

tetradic

#427DB1 #AD42B1 #B17642 #46B142

square

#427DB1 #AD42B1 #B17642 #46B142

split-complementary

#427DB1 #B14246 #B1AD42

monochromatic

#213E58 #315E84 #427DB1 #699BC7 #96B9D8

Accessibility & contrast

On white

4.38

#427DB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#427DB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427DB1

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427DB1	#FFFFFF	#000000	##000000
##427DB1	1.00	4.38	4.80	4.80
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#667FB3

Deuteranopia (green-blind)

#5774B0

Tritanopia (blue-blind)

#00898F

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #427db1;
/* rgb */ color: rgb(66, 125, 177);
/* oklch */ color: oklch(57.3% 0.102 247.2);

Tailwind

colors: {
  custom: {
    50: '#81a2c8',
    500: '#427db1',
    950: '#000000',
  },
}

SCSS

$custom: #427db1;
$custom-light: #81a2c8;
$custom-dark: #000000;

JSON

{
  "hex": "#427db1",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 177
  },
  "hsl": {
    "h": 208.108,
    "s": 45.679,
    "l": 47.647
  },
  "oklch": {
    "l": 0.57306,
    "c": 0.10166,
    "h": 247.2
  },
  "luminance": 0.19
}

Semantic roles & 50–950 ramp

primary

#427DB1

secondary

#C3A68B

accent

#9052D5

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #427DB1

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

Preview Lab → · Contrast checker → · Palette generator →