#425CCB#425CCB

#425CCB is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.8% C 0.174 H 269.4°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#425CCB
RGB	rgb(66, 92, 203)
HSL	hsl(229, 57%, 53%)
HSV	hsv(229, 67%, 80%)
CMYK	cmyk(67.5%, 54.7%, 0%, 20.4%)
CIE-LAB	lab(42.95, 26.80, -60.62)
CIE-LCH	lch(42.95, 66.28, 293.85°)
OKLab	oklab(51.83% -0.0017 -0.1744)
OKLCH	oklch(51.83% 0.174 269.4)
XYZ	xyz(16.8497, 13.1227, 58.1333)
Luminance	0.1312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#425CCB #CBB142

analogous

#42A0CB #425CCB #6C42CB

triadic

#425CCB #CB425C #5CCB42

tetradic

#425CCB #CB42A0 #CBB142 #42CB6C

square

#425CCB #CB42A0 #CBB142 #42CB6C

split-complementary

#425CCB #CB6C42 #A0CB42

monochromatic

#202F73 #2D43A3 #425CCB #7285D8 #A2AFE5

Accessibility & contrast

On white

5.79

#425CCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#425CCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #425CCB

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##425CCB	#FFFFFF	#000000	##FFFFFF
##425CCB	1.00	5.79	3.62	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CCF

Deuteranopia (green-blind)

#005FC9

Tritanopia (blue-blind)

#00778A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #425ccb;
/* rgb */ color: rgb(66, 92, 203);
/* oklch */ color: oklch(51.8% 0.174 269.4);

Tailwind

colors: {
  custom: {
    50: '#8689dc',
    500: '#425ccb',
    950: '#000000',
  },
}

SCSS

$custom: #425ccb;
$custom-light: #8689dc;
$custom-dark: #000000;

JSON

{
  "hex": "#425ccb",
  "rgb": {
    "r": 66,
    "g": 92,
    "b": 203
  },
  "hsl": {
    "h": 228.613,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.51828,
    "c": 0.17437,
    "h": 269.4
  },
  "luminance": 0.13124
}

Semantic roles & 50–950 ramp

primary

#425CCB

secondary

#D2C797

accent

#C348E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #425CCB

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

Preview Lab → · Contrast checker → · Palette generator →