#4255C6#4255C6

#4255C6 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.1% C 0.176 H 271.3°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#4255C6
RGB	rgb(66, 85, 198)
HSL	hsl(231, 54%, 52%)
HSV	hsv(231, 67%, 78%)
CMYK	cmyk(66.7%, 57.1%, 0%, 22.4%)
CIE-LAB	lab(40.79, 29.49, -61.23)
CIE-LCH	lch(40.79, 67.96, 295.71°)
OKLab	oklab(50.09% 0.0041 -0.1763)
OKLCH	oklch(50.09% 0.176 271.3)
XYZ	xyz(15.6849, 11.7310, 54.8529)
Luminance	0.1173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4255C6 #C6B342

analogous

#4297C6 #4255C6 #7142C6

triadic

#4255C6 #C64255 #55C642

tetradic

#4255C6 #C64297 #C6B342 #42C671

square

#4255C6 #C64297 #C6B342 #42C671

split-complementary

#4255C6 #C67142 #97C642

monochromatic

#212C6D #2F3F9C #4255C6 #717FD4 #A0AAE2

Accessibility & contrast

On white

6.28

#4255C6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#4255C6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4255C6

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4255C6	#FFFFFF	#000000	##FFFFFF
##4255C6	1.00	6.28	3.35	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CA

Deuteranopia (green-blind)

#005AC4

Tritanopia (blue-blind)

#007185

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4255c6;
/* rgb */ color: rgb(66, 85, 198);
/* oklch */ color: oklch(50.1% 0.176 271.3);

Tailwind

colors: {
  custom: {
    50: '#8584d8',
    500: '#4255c6',
    950: '#000000',
  },
}

SCSS

$custom: #4255c6;
$custom-light: #8584d8;
$custom-dark: #000000;

JSON

{
  "hex": "#4255c6",
  "rgb": {
    "r": 66,
    "g": 85,
    "b": 198
  },
  "hsl": {
    "h": 231.364,
    "s": 53.659,
    "l": 51.765
  },
  "oklch": {
    "l": 0.50094,
    "c": 0.17631,
    "h": 271.3
  },
  "luminance": 0.11732
}

Semantic roles & 50–950 ramp

primary

#4255C6

secondary

#CFC795

accent

#C84BDD

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #4255C6

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

Preview Lab → · Contrast checker → · Palette generator →