#427EB2#427EB2

#427EB2 is a mid, moderate cyan. Relative luminance 0.193; OKLCH L 57.6% C 0.102 H 246.9°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#427EB2
RGB	rgb(66, 126, 178)
HSL	hsl(208, 46%, 48%)
HSV	hsv(208, 63%, 70%)
CMYK	cmyk(62.9%, 29.2%, 0%, 30.2%)
CIE-LAB	lab(51.03, -3.17, -33.30)
CIE-LCH	lch(51.03, 33.45, 264.57°)
OKLab	oklab(57.59% -0.0401 -0.0938)
OKLCH	oklch(57.59% 0.102 246.9)
XYZ	xyz(17.7405, 19.2926, 44.8998)
Luminance	0.1929 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427EB2 #B27642

analogous

#42B2AE #427EB2 #4246B2

triadic

#427EB2 #B2427E #7EB242

tetradic

#427EB2 #AE42B2 #B27642 #46B242

square

#427EB2 #AE42B2 #B27642 #46B242

split-complementary

#427EB2 #B24246 #B2AE42

monochromatic

#213F59 #315E85 #427EB2 #6A9CC8 #96BAD8

Accessibility & contrast

On white

4.32

#427EB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#427EB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427EB2

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427EB2	#FFFFFF	#000000	##000000
##427EB2	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6780B4

Deuteranopia (green-blind)

#5875B1

Tritanopia (blue-blind)

#008A90

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #427eb2;
/* rgb */ color: rgb(66, 126, 178);
/* oklch */ color: oklch(57.6% 0.102 246.9);

Tailwind

colors: {
  custom: {
    50: '#81a3c9',
    500: '#427eb2',
    950: '#000000',
  },
}

SCSS

$custom: #427eb2;
$custom-light: #81a3c9;
$custom-dark: #000000;

JSON

{
  "hex": "#427eb2",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 178
  },
  "hsl": {
    "h": 207.857,
    "s": 45.902,
    "l": 47.843
  },
  "oklch": {
    "l": 0.57592,
    "c": 0.10206,
    "h": 246.9
  },
  "luminance": 0.19294
}

Semantic roles & 50–950 ramp

primary

#427EB2

secondary

#C4A68C

accent

#8F52D6

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #427EB2

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

Preview Lab → · Contrast checker → · Palette generator →