#425FCB#425FCB

#425FCB is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.4% C 0.171 H 268.6°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#425FCB
RGB	rgb(66, 95, 203)
HSL	hsl(227, 57%, 53%)
HSV	hsv(227, 67%, 80%)
CMYK	cmyk(67.5%, 53.2%, 0%, 20.4%)
CIE-LAB	lab(43.73, 24.89, -59.35)
CIE-LCH	lch(43.73, 64.35, 292.75°)
OKLab	oklab(52.42% -0.0043 -0.1706)
OKLCH	oklch(52.42% 0.171 268.6)
XYZ	xyz(17.1148, 13.6528, 58.2216)
Luminance	0.1365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#425FCB #CBAE42

analogous

#42A4CB #425FCB #6942CB

triadic

#425FCB #CB425F #5FCB42

tetradic

#425FCB #CB42A4 #CBAE42 #42CB69

square

#425FCB #CB42A4 #CBAE42 #42CB69

split-complementary

#425FCB #CB6942 #A4CB42

monochromatic

#203173 #2D46A3 #425FCB #7288D8 #A2B0E5

Accessibility & contrast

On white

5.63

#425FCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#425FCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #425FCB

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##425FCB	#FFFFFF	#000000	##FFFFFF
##425FCB	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#136ECF

Deuteranopia (green-blind)

#0061C9

Tritanopia (blue-blind)

#00798C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #425fcb;
/* rgb */ color: rgb(66, 95, 203);
/* oklch */ color: oklch(52.4% 0.171 268.6);

Tailwind

colors: {
  custom: {
    50: '#868cdc',
    500: '#425fcb',
    950: '#000000',
  },
}

SCSS

$custom: #425fcb;
$custom-light: #868cdc;
$custom-dark: #000000;

JSON

{
  "hex": "#425fcb",
  "rgb": {
    "r": 66,
    "g": 95,
    "b": 203
  },
  "hsl": {
    "h": 227.299,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.52418,
    "c": 0.17063,
    "h": 268.6
  },
  "luminance": 0.13654
}

Semantic roles & 50–950 ramp

primary

#425FCB

secondary

#D2C697

accent

#C048E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #425FCB

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

Preview Lab → · Contrast checker → · Palette generator →