#425FB1#425FB1

#425FB1 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.6% C 0.134 H 266.9°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#425FB1
RGB	rgb(66, 95, 177)
HSL	hsl(224, 46%, 48%)
HSV	hsv(224, 63%, 69%)
CMYK	cmyk(62.7%, 46.3%, 0%, 30.6%)
CIE-LAB	lab(42.02, 15.65, -46.98)
CIE-LCH	lch(42.02, 49.52, 288.43°)
OKLab	oklab(50.58% -0.0072 -0.1342)
OKLCH	oklch(50.58% 0.134 266.9)
XYZ	xyz(14.2721, 12.5157, 43.2501)
Luminance	0.1252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#425FB1 #B19442

analogous

#4297B1 #425FB1 #5C42B1

triadic

#425FB1 #B1425F #5FB142

tetradic

#425FB1 #B14297 #B19442 #42B15C

square

#425FB1 #B14297 #B19442 #42B15C

split-complementary

#425FB1 #B15C42 #97B142

monochromatic

#212F58 #314784 #425FB1 #6982C7 #96A7D8

Accessibility & contrast

On white

5.99

#425FB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#425FB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #425FB1

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##425FB1	#FFFFFF	#000000	##FFFFFF
##425FB1	1.00	5.99	3.50	5.99
#FFFFFF	5.99	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	5.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3768B4

Deuteranopia (green-blind)

#255EAF

Tritanopia (blue-blind)

#00727F

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #425fb1;
/* rgb */ color: rgb(66, 95, 177);
/* oklch */ color: oklch(50.6% 0.134 266.9);

Tailwind

colors: {
  custom: {
    50: '#818cc9',
    500: '#425fb1',
    950: '#000000',
  },
}

SCSS

$custom: #425fb1;
$custom-light: #818cc9;
$custom-dark: #000000;

JSON

{
  "hex": "#425fb1",
  "rgb": {
    "r": 66,
    "g": 95,
    "b": 177
  },
  "hsl": {
    "h": 224.324,
    "s": 45.679,
    "l": 47.647
  },
  "oklch": {
    "l": 0.50575,
    "c": 0.13438,
    "h": 266.9
  },
  "luminance": 0.12517
}

Semantic roles & 50–950 ramp

primary

#425FB1

secondary

#C3B58B

accent

#B352D5

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #425FB1

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

Preview Lab → · Contrast checker → · Palette generator →