#425FB8#425FB8

#425FB8 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.1% C 0.144 H 267.5°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#425FB8
RGB	rgb(66, 95, 184)
HSL	hsl(225, 47%, 49%)
HSV	hsv(225, 64%, 72%)
CMYK	cmyk(64.1%, 48.4%, 0%, 27.8%)
CIE-LAB	lab(42.46, 18.13, -50.37)
CIE-LCH	lch(42.46, 53.54, 289.80°)
OKLab	oklab(51.05% -0.0062 -0.1442)
OKLCH	oklch(51.05% 0.144 267.5)
XYZ	xyz(14.9877, 12.8020, 47.0193)
Luminance	0.1280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#425FB8 #B89B42

analogous

#429AB8 #425FB8 #6042B8

triadic

#425FB8 #B8425F #5FB842

tetradic

#425FB8 #B8429A #B89B42 #42B860

square

#425FB8 #B8429A #B89B42 #42B860

split-complementary

#425FB8 #B86042 #9AB842

monochromatic

#22305E #32488B #425FB8 #6D84CB #9AAADB

Accessibility & contrast

On white

5.90

#425FB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#425FB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #425FB8

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##425FB8	#FFFFFF	#000000	##FFFFFF
##425FB8	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#316ABB

Deuteranopia (green-blind)

#185FB6

Tritanopia (blue-blind)

#007382

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #425fb8;
/* rgb */ color: rgb(66, 95, 184);
/* oklch */ color: oklch(51.1% 0.144 267.5);

Tailwind

colors: {
  custom: {
    50: '#828cce',
    500: '#425fb8',
    950: '#000000',
  },
}

SCSS

$custom: #425fb8;
$custom-light: #828cce;
$custom-dark: #000000;

JSON

{
  "hex": "#425fb8",
  "rgb": {
    "r": 66,
    "g": 95,
    "b": 184
  },
  "hsl": {
    "h": 225.254,
    "s": 47.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.51052,
    "c": 0.1443,
    "h": 267.5
  },
  "luminance": 0.12803
}

Semantic roles & 50–950 ramp

primary

#425FB8

secondary

#C7B98F

accent

#B651D7

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #425FB8

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

Preview Lab → · Contrast checker → · Palette generator →