#425FCC#425FCC

#425FCC is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.5% C 0.172 H 268.6°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#425FCC
RGB	rgb(66, 95, 204)
HSL	hsl(227, 58%, 53%)
HSV	hsv(227, 68%, 80%)
CMYK	cmyk(67.6%, 53.4%, 0%, 20%)
CIE-LAB	lab(43.80, 25.24, -59.81)
CIE-LCH	lch(43.80, 64.92, 292.88°)
OKLab	oklab(52.49% -0.0042 -0.1719)
OKLCH	oklch(52.49% 0.172 268.6)
XYZ	xyz(17.2343, 13.7006, 58.8513)
Luminance	0.1370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#425FCC #CCAF42

analogous

#42A4CC #425FCC #6A42CC

triadic

#425FCC #CC425F #5FCC42

tetradic

#425FCC #CC42A4 #CCAF42 #42CC6A

square

#425FCC #CC42A4 #CCAF42 #42CC6A

split-complementary

#425FCC #CC6A42 #A4CC42

monochromatic

#1F3174 #2C46A4 #425FCC #7288D9 #A2B1E6

Accessibility & contrast

On white

5.61

#425FCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#425FCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #425FCC

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##425FCC	#FFFFFF	#000000	##FFFFFF
##425FCC	1.00	5.61	3.74	5.61
#FFFFFF	5.61	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#106ED0

Deuteranopia (green-blind)

#0062CA

Tritanopia (blue-blind)

#00798C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #425fcc;
/* rgb */ color: rgb(66, 95, 204);
/* oklch */ color: oklch(52.5% 0.172 268.6);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#425fcc",
  "rgb": {
    "r": 66,
    "g": 95,
    "b": 204
  },
  "hsl": {
    "h": 227.391,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.52492,
    "c": 0.172,
    "h": 268.6
  },
  "luminance": 0.13702
}

Semantic roles & 50–950 ramp

primary

#425FCC

secondary

#D3C697

accent

#C047E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #425FCC

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

Preview Lab → · Contrast checker → · Palette generator →