#4256C9#4256C9

#4256C9 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.5% C 0.179 H 271.1°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#4256C9
RGB	rgb(66, 86, 201)
HSL	hsl(231, 56%, 52%)
HSV	hsv(231, 67%, 79%)
CMYK	cmyk(67.2%, 57.2%, 0%, 21.2%)
CIE-LAB	lab(41.26, 29.91, -62.20)
CIE-LCH	lch(41.26, 69.01, 295.68°)
OKLab	oklab(50.52% 0.0033 -0.1791)
OKLCH	oklch(50.52% 0.179 271.1)
XYZ	xyz(16.1136, 12.0294, 56.7197)
Luminance	0.1203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4256C9 #C9B542

analogous

#429AC9 #4256C9 #7142C9

triadic

#4256C9 #C94256 #56C942

tetradic

#4256C9 #C9429A #C9B542 #42C971

square

#4256C9 #C9429A #C9B542 #42C971

split-complementary

#4256C9 #C97142 #9AC942

monochromatic

#202C70 #2E3FA0 #4256C9 #7281D7 #A1ABE4

Accessibility & contrast

On white

6.17

#4256C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#4256C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4256C9

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4256C9	#FFFFFF	#000000	##FFFFFF
##4256C9	1.00	6.17	3.41	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CD

Deuteranopia (green-blind)

#005BC7

Tritanopia (blue-blind)

#007287

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4256c9;
/* rgb */ color: rgb(66, 86, 201);
/* oklch */ color: oklch(50.5% 0.179 271.1);

Tailwind

colors: {
  custom: {
    50: '#8685da',
    500: '#4256c9',
    950: '#000000',
  },
}

SCSS

$custom: #4256c9;
$custom-light: #8685da;
$custom-dark: #000000;

JSON

{
  "hex": "#4256c9",
  "rgb": {
    "r": 66,
    "g": 86,
    "b": 201
  },
  "hsl": {
    "h": 231.111,
    "s": 55.556,
    "l": 52.353
  },
  "oklch": {
    "l": 0.5052,
    "c": 0.17911,
    "h": 271.1
  },
  "luminance": 0.12031
}

Semantic roles & 50–950 ramp

primary

#4256C9

secondary

#D1C896

accent

#C949DF

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #4256C9

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

Preview Lab → · Contrast checker → · Palette generator →