#425FB3#425FB3

#425FB3 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 50.7% C 0.137 H 267.1°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#425FB3
RGB	rgb(66, 95, 179)
HSL	hsl(225, 46%, 48%)
HSV	hsv(225, 63%, 70%)
CMYK	cmyk(63.1%, 46.9%, 0%, 29.8%)
CIE-LAB	lab(42.15, 16.36, -47.95)
CIE-LCH	lch(42.15, 50.67, 288.84°)
OKLab	oklab(50.71% -0.0069 -0.1371)
OKLCH	oklch(50.71% 0.137 267.1)
XYZ	xyz(14.4729, 12.5961, 44.3077)
Luminance	0.1260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#425FB3 #B39642

analogous

#4297B3 #425FB3 #5E42B3

triadic

#425FB3 #B3425F #5FB342

tetradic

#425FB3 #B34297 #B39642 #42B35E

square

#425FB3 #B34297 #B39642 #42B35E

split-complementary

#425FB3 #B35E42 #97B342

monochromatic

#21305A #324786 #425FB3 #6A82C8 #97A8D9

Accessibility & contrast

On white

5.97

#425FB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#425FB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #425FB3

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##425FB3	#FFFFFF	#000000	##FFFFFF
##425FB3	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3669B6

Deuteranopia (green-blind)

#225FB1

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #425fb3;
/* rgb */ color: rgb(66, 95, 179);
/* oklch */ color: oklch(50.7% 0.137 267.1);

Tailwind

colors: {
  custom: {
    50: '#818cca',
    500: '#425fb3',
    950: '#000000',
  },
}

SCSS

$custom: #425fb3;
$custom-light: #818cca;
$custom-dark: #000000;

JSON

{
  "hex": "#425fb3",
  "rgb": {
    "r": 66,
    "g": 95,
    "b": 179
  },
  "hsl": {
    "h": 224.602,
    "s": 46.122,
    "l": 48.039
  },
  "oklch": {
    "l": 0.5071,
    "c": 0.13723,
    "h": 267.1
  },
  "luminance": 0.12597
}

Semantic roles & 50–950 ramp

primary

#425FB3

secondary

#C4B68C

accent

#B452D6

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #425FB3

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

Preview Lab → · Contrast checker → · Palette generator →