#425CB1#425CB1

#425CB1 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 49.9% C 0.138 H 268.3°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#425CB1
RGB	rgb(66, 92, 177)
HSL	hsl(226, 46%, 48%)
HSV	hsv(226, 63%, 69%)
CMYK	cmyk(62.7%, 48%, 0%, 30.6%)
CIE-LAB	lab(41.19, 17.58, -48.31)
CIE-LCH	lch(41.19, 51.41, 290.00°)
OKLab	oklab(49.94% -0.0041 -0.1381)
OKLCH	oklch(49.94% 0.138 268.3)
XYZ	xyz(14.0070, 11.9857, 43.1618)
Luminance	0.1199 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#425CB1 #B19742

analogous

#4293B1 #425CB1 #5F42B1

triadic

#425CB1 #B1425C #5CB142

tetradic

#425CB1 #B14293 #B19742 #42B15F

square

#425CB1 #B14293 #B19742 #42B15F

split-complementary

#425CB1 #B15F42 #93B142

monochromatic

#212E58 #314584 #425CB1 #697FC7 #96A5D8

Accessibility & contrast

On white

6.18

#425CB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#425CB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #425CB1

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##425CB1	#FFFFFF	#000000	##FFFFFF
##425CB1	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3166B4

Deuteranopia (green-blind)

#1C5CAF

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #425cb1;
/* rgb */ color: rgb(66, 92, 177);
/* oklch */ color: oklch(49.9% 0.138 268.3);

Tailwind

colors: {
  custom: {
    50: '#8189c9',
    500: '#425cb1',
    950: '#000000',
  },
}

SCSS

$custom: #425cb1;
$custom-light: #8189c9;
$custom-dark: #000000;

JSON

{
  "hex": "#425cb1",
  "rgb": {
    "r": 66,
    "g": 92,
    "b": 177
  },
  "hsl": {
    "h": 225.946,
    "s": 45.679,
    "l": 47.647
  },
  "oklch": {
    "l": 0.49941,
    "c": 0.13821,
    "h": 268.3
  },
  "luminance": 0.11987
}

Semantic roles & 50–950 ramp

primary

#425CB1

secondary

#C3B68B

accent

#B752D5

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #425CB1

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

Preview Lab → · Contrast checker → · Palette generator →