#427AB2#427AB2

#427AB2 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.7% C 0.106 H 250.2°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#427AB2
RGB	rgb(66, 122, 178)
HSL	hsl(210, 46%, 48%)
HSV	hsv(210, 63%, 70%)
CMYK	cmyk(62.9%, 31.5%, 0%, 30.2%)
CIE-LAB	lab(49.85, -0.79, -35.15)
CIE-LCH	lch(49.85, 35.16, 268.71°)
OKLab	oklab(56.66% -0.0358 -0.0993)
OKLCH	oklch(56.66% 0.106 250.2)
XYZ	xyz(17.2392, 18.2900, 44.7327)
Luminance	0.1829 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427AB2 #B27A42

analogous

#42B2B2 #427AB2 #4242B2

triadic

#427AB2 #B2427A #7AB242

tetradic

#427AB2 #B242B2 #B27A42 #42B242

square

#427AB2 #B242B2 #B27A42 #42B242

split-complementary

#427AB2 #B24242 #B2B242

monochromatic

#213D59 #315B85 #427AB2 #6A99C8 #96B7D8

Accessibility & contrast

On white

4.51

#427AB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#427AB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427AB2

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427AB2	#FFFFFF	#000000	##000000
##427AB2	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#627DB4

Deuteranopia (green-blind)

#5372B1

Tritanopia (blue-blind)

#00878E

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #427ab2;
/* rgb */ color: rgb(66, 122, 178);
/* oklch */ color: oklch(56.7% 0.106 250.2);

Tailwind

colors: {
  custom: {
    50: '#81a0c9',
    500: '#427ab2',
    950: '#000000',
  },
}

SCSS

$custom: #427ab2;
$custom-light: #81a0c9;
$custom-dark: #000000;

JSON

{
  "hex": "#427ab2",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 178
  },
  "hsl": {
    "h": 210,
    "s": 45.902,
    "l": 47.843
  },
  "oklch": {
    "l": 0.56662,
    "c": 0.10551,
    "h": 250.2
  },
  "luminance": 0.18292
}

Semantic roles & 50–950 ramp

primary

#427AB2

secondary

#C4A88C

accent

#9452D6

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #427AB2

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

Preview Lab → · Contrast checker → · Palette generator →