#425EB3#425EB3

#425EB3 is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.5% C 0.139 H 267.6°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#425EB3
RGB	rgb(66, 94, 179)
HSL	hsl(225, 46%, 48%)
HSV	hsv(225, 63%, 70%)
CMYK	cmyk(63.1%, 47.5%, 0%, 29.8%)
CIE-LAB	lab(41.87, 17.00, -48.40)
CIE-LCH	lch(41.87, 51.29, 289.36°)
OKLab	oklab(50.5% -0.0059 -0.1384)
OKLCH	oklch(50.5% 0.139 267.6)
XYZ	xyz(14.3834, 12.4171, 44.2778)
Luminance	0.1242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#425EB3 #B39742

analogous

#4296B3 #425EB3 #5F42B3

triadic

#425EB3 #B3425E #5EB342

tetradic

#425EB3 #B34296 #B39742 #42B35F

square

#425EB3 #B34296 #B39742 #42B35F

split-complementary

#425EB3 #B35F42 #96B342

monochromatic

#212F5A #324786 #425EB3 #6A81C8 #97A7D9

Accessibility & contrast

On white

6.03

#425EB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#425EB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #425EB3

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##425EB3	#FFFFFF	#000000	##FFFFFF
##425EB3	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3468B6

Deuteranopia (green-blind)

#1F5EB1

Tritanopia (blue-blind)

#007180

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #425eb3;
/* rgb */ color: rgb(66, 94, 179);
/* oklch */ color: oklch(50.5% 0.139 267.6);

Tailwind

colors: {
  custom: {
    50: '#818bca',
    500: '#425eb3',
    950: '#000000',
  },
}

SCSS

$custom: #425eb3;
$custom-light: #818bca;
$custom-dark: #000000;

JSON

{
  "hex": "#425eb3",
  "rgb": {
    "r": 66,
    "g": 94,
    "b": 179
  },
  "hsl": {
    "h": 225.133,
    "s": 46.122,
    "l": 48.039
  },
  "oklch": {
    "l": 0.50499,
    "c": 0.13851,
    "h": 267.6
  },
  "luminance": 0.12418
}

Semantic roles & 50–950 ramp

primary

#425EB3

secondary

#C4B78C

accent

#B552D6

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #425EB3

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

Preview Lab → · Contrast checker → · Palette generator →