#427AD1#427AD1

#427AD1 is a mid, vivid blue. Relative luminance 0.197; OKLCH L 58.5% C 0.146 H 258.9°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#427AD1
RGB	rgb(66, 122, 209)
HSL	hsl(217, 61%, 54%)
HSV	hsv(217, 68%, 82%)
CMYK	cmyk(68.4%, 41.6%, 0%, 18%)
CIE-LAB	lab(51.47, 10.05, -50.34)
CIE-LCH	lch(51.47, 51.33, 281.29°)
OKLab	oklab(58.46% -0.0281 -0.1437)
OKLCH	oklch(58.46% 0.146 258.9)
XYZ	xyz(20.7108, 19.6786, 63.0161)
Luminance	0.1968 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427AD1 #D19942

analogous

#42C2D1 #427AD1 #5242D1

triadic

#427AD1 #D1427A #7AD142

tetradic

#427AD1 #D142C2 #D19942 #42D152

square

#427AD1 #D142C2 #D19942 #42D152

split-complementary

#427AD1 #D15242 #C2D142

monochromatic

#1E427B #2A5DAC #427AD1 #739DDD #A4BFE9

Accessibility & contrast

On white

4.25

#427AD1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#427AD1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427AD1

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427AD1	#FFFFFF	#000000	##000000
##427AD1	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5182D4

Deuteranopia (green-blind)

#3A75CF

Tritanopia (blue-blind)

#008E9B

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #427ad1;
/* rgb */ color: rgb(66, 122, 209);
/* oklch */ color: oklch(58.5% 0.146 258.9);

Tailwind

colors: {
  custom: {
    50: '#869fdf',
    500: '#427ad1',
    950: '#000000',
  },
}

SCSS

$custom: #427ad1;
$custom-light: #869fdf;
$custom-dark: #000000;

JSON

{
  "hex": "#427ad1",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 209
  },
  "hsl": {
    "h": 216.503,
    "s": 60.851,
    "l": 53.922
  },
  "oklch": {
    "l": 0.5846,
    "c": 0.14639,
    "h": 258.9
  },
  "luminance": 0.19681
}

Semantic roles & 50–950 ramp

primary

#427AD1

secondary

#D6BE99

accent

#A544E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #427AD1

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

Preview Lab → · Contrast checker → · Palette generator →