#4256C5#4256C5

#4256C5 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.2% C 0.174 H 271.1°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#4256C5
RGB	rgb(66, 86, 197)
HSL	hsl(231, 53%, 52%)
HSV	hsv(231, 66%, 77%)
CMYK	cmyk(66.5%, 56.3%, 0%, 22.7%)
CIE-LAB	lab(40.97, 28.50, -60.36)
CIE-LCH	lch(40.97, 66.75, 295.28°)
OKLab	oklab(50.21% 0.0032 -0.1737)
OKLCH	oklch(50.21% 0.174 271.1)
XYZ	xyz(15.6492, 11.8436, 54.2738)
Luminance	0.1184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4256C5 #C5B142

analogous

#4297C5 #4256C5 #7042C5

triadic

#4256C5 #C54256 #56C542

tetradic

#4256C5 #C54297 #C5B142 #42C570

square

#4256C5 #C54297 #C5B142 #42C570

split-complementary

#4256C5 #C57042 #97C542

monochromatic

#212C6C #2F409A #4256C5 #7180D3 #A0AAE2

Accessibility & contrast

On white

6.23

#4256C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#4256C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4256C5

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4256C5	#FFFFFF	#000000	##FFFFFF
##4256C5	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067C9

Deuteranopia (green-blind)

#005BC3

Tritanopia (blue-blind)

#007185

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4256c5;
/* rgb */ color: rgb(66, 86, 197);
/* oklch */ color: oklch(50.2% 0.174 271.1);

Tailwind

colors: {
  custom: {
    50: '#8585d7',
    500: '#4256c5',
    950: '#000000',
  },
}

SCSS

$custom: #4256c5;
$custom-light: #8585d7;
$custom-dark: #000000;

JSON

{
  "hex": "#4256c5",
  "rgb": {
    "r": 66,
    "g": 86,
    "b": 197
  },
  "hsl": {
    "h": 230.84,
    "s": 53.036,
    "l": 51.569
  },
  "oklch": {
    "l": 0.50206,
    "c": 0.17371,
    "h": 271.1
  },
  "luminance": 0.11845
}

Semantic roles & 50–950 ramp

primary

#4256C5

secondary

#CEC595

accent

#C64BDC

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #4256C5

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

Preview Lab → · Contrast checker → · Palette generator →