#425CBB#425CBB

#425CBB is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.6% C 0.152 H 268.9°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#425CBB
RGB	rgb(66, 92, 187)
HSL	hsl(227, 48%, 50%)
HSV	hsv(227, 65%, 73%)
CMYK	cmyk(64.7%, 50.8%, 0%, 26.7%)
CIE-LAB	lab(41.84, 21.12, -53.12)
CIE-LCH	lch(41.84, 57.17, 291.68°)
OKLab	oklab(50.64% -0.0029 -0.1523)
OKLCH	oklch(50.64% 0.152 268.9)
XYZ	xyz(15.0405, 12.3990, 48.6047)
Luminance	0.1240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#425CBB #BBA142

analogous

#4299BB #425CBB #6442BB

triadic

#425CBB #BB425C #5CBB42

tetradic

#425CBB #BB4299 #BBA142 #42BB64

square

#425CBB #BB4299 #BBA142 #42BB64

split-complementary

#425CBB #BB6442 #99BB42

monochromatic

#222F61 #32468E #425CBB #6E82CC #9CA9DC

Accessibility & contrast

On white

6.03

#425CBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#425CBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #425CBB

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

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

#2668BE

Deuteranopia (green-blind)

#005EB9

Tritanopia (blue-blind)

#007283

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #425cbb;
/* rgb */ color: rgb(66, 92, 187);
/* oklch */ color: oklch(50.6% 0.152 268.9);

Tailwind

colors: {
  custom: {
    50: '#8389d0',
    500: '#425cbb',
    950: '#000000',
  },
}

SCSS

$custom: #425cbb;
$custom-light: #8389d0;
$custom-dark: #000000;

JSON

{
  "hex": "#425cbb",
  "rgb": {
    "r": 66,
    "g": 92,
    "b": 187
  },
  "hsl": {
    "h": 227.107,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.50643,
    "c": 0.15233,
    "h": 268.9
  },
  "luminance": 0.124
}

Semantic roles & 50–950 ramp

primary

#425CBB

secondary

#C8BC91

accent

#BA50D7

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #425CBB

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

Preview Lab → · Contrast checker → · Palette generator →