#425BC9#425BC9

#425BC9 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.5% C 0.173 H 269.7°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#425BC9
RGB	rgb(66, 91, 201)
HSL	hsl(229, 56%, 52%)
HSV	hsv(229, 67%, 79%)
CMYK	cmyk(67.2%, 54.7%, 0%, 21.2%)
CIE-LAB	lab(42.55, 26.72, -60.11)
CIE-LCH	lch(42.55, 65.79, 293.97°)
OKLab	oklab(51.48% -0.0009 -0.1729)
OKLCH	oklch(51.48% 0.173 269.7)
XYZ	xyz(16.5269, 12.8559, 56.8575)
Luminance	0.1286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#425BC9 #C9B042

analogous

#429FC9 #425BC9 #6D42C9

triadic

#425BC9 #C9425B #5BC942

tetradic

#425BC9 #C9429F #C9B042 #42C96D

square

#425BC9 #C9429F #C9B042 #42C96D

split-complementary

#425BC9 #C96D42 #9FC942

monochromatic

#202F70 #2E43A0 #425BC9 #7284D7 #A1AEE4

Accessibility & contrast

On white

5.88

#425BC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#425BC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #425BC9

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##425BC9	#FFFFFF	#000000	##FFFFFF
##425BC9	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BCD

Deuteranopia (green-blind)

#005FC7

Tritanopia (blue-blind)

#007589

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #425bc9;
/* rgb */ color: rgb(66, 91, 201);
/* oklch */ color: oklch(51.5% 0.173 269.7);

Tailwind

colors: {
  custom: {
    50: '#8689da',
    500: '#425bc9',
    950: '#000000',
  },
}

SCSS

$custom: #425bc9;
$custom-light: #8689da;
$custom-dark: #000000;

JSON

{
  "hex": "#425bc9",
  "rgb": {
    "r": 66,
    "g": 91,
    "b": 201
  },
  "hsl": {
    "h": 228.889,
    "s": 55.556,
    "l": 52.353
  },
  "oklch": {
    "l": 0.51481,
    "c": 0.17289,
    "h": 269.7
  },
  "luminance": 0.12857
}

Semantic roles & 50–950 ramp

primary

#425BC9

secondary

#D1C696

accent

#C349DF

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #425BC9

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

Preview Lab → · Contrast checker → · Palette generator →