#427ABB#427ABB

#427ABB is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 57.2% C 0.117 H 253.5°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#427ABB
RGB	rgb(66, 122, 187)
HSL	hsl(212, 48%, 50%)
HSV	hsv(212, 65%, 73%)
CMYK	cmyk(64.7%, 34.8%, 0%, 26.7%)
CIE-LAB	lab(50.29, 2.31, -39.64)
CIE-LCH	lch(50.29, 39.71, 273.33°)
OKLab	oklab(57.16% -0.0332 -0.1123)
OKLCH	oklch(57.16% 0.117 253.5)
XYZ	xyz(18.1727, 18.6634, 49.6488)
Luminance	0.1867 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427ABB #BB8342

analogous

#42B7BB #427ABB #4642BB

triadic

#427ABB #BB427A #7ABB42

tetradic

#427ABB #BB42B7 #BB8342 #42BB46

square

#427ABB #BB42B7 #BB8342 #42BB46

split-complementary

#427ABB #BB4642 #B7BB42

monochromatic

#223F61 #325C8E #427ABB #6E9ACC #9CB9DC

Accessibility & contrast

On white

4.44

#427ABB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#427ABB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427ABB

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427ABB	#FFFFFF	#000000	##000000
##427ABB	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7EBE

Deuteranopia (green-blind)

#4D72BA

Tritanopia (blue-blind)

#008992

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #427abb;
/* rgb */ color: rgb(66, 122, 187);
/* oklch */ color: oklch(57.2% 0.117 253.5);

Tailwind

colors: {
  custom: {
    50: '#82a0d0',
    500: '#427abb',
    950: '#000000',
  },
}

SCSS

$custom: #427abb;
$custom-light: #82a0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#427abb",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 187
  },
  "hsl": {
    "h": 212.231,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.57157,
    "c": 0.11716,
    "h": 253.5
  },
  "luminance": 0.18665
}

Semantic roles & 50–950 ramp

primary

#427ABB

secondary

#C8AE91

accent

#9950D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #427ABB

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

Preview Lab → · Contrast checker → · Palette generator →