#425BB5#425BB5

#425BB5 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.0% C 0.145 H 269.0°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#425BB5
RGB	rgb(66, 91, 181)
HSL	hsl(227, 47%, 48%)
HSV	hsv(227, 64%, 71%)
CMYK	cmyk(63.5%, 49.7%, 0%, 29%)
CIE-LAB	lab(41.18, 19.64, -50.68)
CIE-LCH	lch(41.18, 54.36, 291.18°)
OKLab	oklab(50.01% -0.0026 -0.1451)
OKLCH	oklch(50.01% 0.145 269)
XYZ	xyz(14.3255, 11.9754, 45.2636)
Luminance	0.1198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#425BB5 #B59C42

analogous

#4294B5 #425BB5 #6342B5

triadic

#425BB5 #B5425B #5BB542

tetradic

#425BB5 #B54294 #B59C42 #42B563

square

#425BB5 #B54294 #B59C42 #42B563

split-complementary

#425BB5 #B56342 #94B542

monochromatic

#212E5B #324488 #425BB5 #6B80C9 #98A6D9

Accessibility & contrast

On white

6.18

#425BB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#425BB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #425BB5

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##425BB5	#FFFFFF	#000000	##FFFFFF
##425BB5	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)

#2B67B8

Deuteranopia (green-blind)

#0F5CB3

Tritanopia (blue-blind)

#00707F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #425bb5;
/* rgb */ color: rgb(66, 91, 181);
/* oklch */ color: oklch(50.0% 0.145 269.0);

Tailwind

colors: {
  custom: {
    50: '#8289cc',
    500: '#425bb5',
    950: '#000000',
  },
}

SCSS

$custom: #425bb5;
$custom-light: #8289cc;
$custom-dark: #000000;

JSON

{
  "hex": "#425bb5",
  "rgb": {
    "r": 66,
    "g": 91,
    "b": 181
  },
  "hsl": {
    "h": 226.957,
    "s": 46.559,
    "l": 48.431
  },
  "oklch": {
    "l": 0.50011,
    "c": 0.14517,
    "h": 269
  },
  "luminance": 0.11977
}

Semantic roles & 50–950 ramp

primary

#425BB5

secondary

#C5B98E

accent

#B952D6

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #425BB5

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

Preview Lab → · Contrast checker → · Palette generator →