#427ACF#427ACF

#427ACF is a mid, vivid blue. Relative luminance 0.196; OKLCH L 58.3% C 0.144 H 258.6°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#427ACF
RGB	rgb(66, 122, 207)
HSL	hsl(216, 59%, 54%)
HSV	hsv(216, 68%, 81%)
CMYK	cmyk(68.1%, 41.1%, 0%, 18.8%)
CIE-LAB	lab(51.36, 9.34, -49.38)
CIE-LCH	lch(51.36, 50.26, 280.71°)
OKLab	oklab(58.34% -0.0285 -0.1409)
OKLCH	oklch(58.34% 0.144 258.6)
XYZ	xyz(20.4647, 19.5802, 61.7202)
Luminance	0.1958 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427ACF #CF9742

analogous

#42C1CF #427ACF #5042CF

triadic

#427ACF #CF427A #7ACF42

tetradic

#427ACF #CF42C1 #CF9742 #42CF50

square

#427ACF #CF42C1 #CF9742 #42CF50

split-complementary

#427ACF #CF5042 #C1CF42

monochromatic

#1F4278 #2B5DA9 #427ACF #739CDB #A4BFE8

Accessibility & contrast

On white

4.27

#427ACF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#427ACF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427ACF

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427ACF	#FFFFFF	#000000	##000000
##427ACF	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5281D2

Deuteranopia (green-blind)

#3C74CD

Tritanopia (blue-blind)

#008E9A

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #427acf;
/* rgb */ color: rgb(66, 122, 207);
/* oklch */ color: oklch(58.3% 0.144 258.6);

Tailwind

colors: {
  custom: {
    50: '#859fde',
    500: '#427acf',
    950: '#000000',
  },
}

SCSS

$custom: #427acf;
$custom-light: #859fde;
$custom-dark: #000000;

JSON

{
  "hex": "#427acf",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 207
  },
  "hsl": {
    "h": 216.17,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58336,
    "c": 0.14373,
    "h": 258.6
  },
  "luminance": 0.19582
}

Semantic roles & 50–950 ramp

primary

#427ACF

secondary

#D5BD98

accent

#A445E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #427ACF

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

Preview Lab → · Contrast checker → · Palette generator →