#4255BA#4255BA

#4255BA is a mid, vivid blue. Relative luminance 0.112; OKLCH L 49.2% C 0.160 H 271.3°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#4255BA
RGB	rgb(66, 85, 186)
HSL	hsl(231, 48%, 49%)
HSV	hsv(231, 65%, 73%)
CMYK	cmyk(64.5%, 54.3%, 0%, 27.1%)
CIE-LAB	lab(39.91, 25.26, -55.65)
CIE-LCH	lch(39.91, 61.12, 294.42°)
OKLab	oklab(49.17% 0.0036 -0.1598)
OKLCH	oklch(49.17% 0.16 271.3)
XYZ	xyz(14.3552, 11.1992, 47.8500)
Luminance	0.1120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4255BA #BAA742

analogous

#4291BA #4255BA #6B42BA

triadic

#4255BA #BA4255 #55BA42

tetradic

#4255BA #BA4291 #BAA742 #42BA6B

square

#4255BA #BA4291 #BAA742 #42BA6B

split-complementary

#4255BA #BA6B42 #91BA42

monochromatic

#222C60 #32408D #4255BA #6E7DCB #9BA5DB

Accessibility & contrast

On white

6.48

#4255BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#4255BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4255BA

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4255BA	#FFFFFF	#000000	##FFFFFF
##4255BA	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B64BE

Deuteranopia (green-blind)

#0059B8

Tritanopia (blue-blind)

#006D7F

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #4255ba;
/* rgb */ color: rgb(66, 85, 186);
/* oklch */ color: oklch(49.2% 0.160 271.3);

Tailwind

colors: {
  custom: {
    50: '#8384cf',
    500: '#4255ba',
    950: '#000000',
  },
}

SCSS

$custom: #4255ba;
$custom-light: #8384cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4255ba",
  "rgb": {
    "r": 66,
    "g": 85,
    "b": 186
  },
  "hsl": {
    "h": 230.5,
    "s": 47.619,
    "l": 49.412
  },
  "oklch": {
    "l": 0.49165,
    "c": 0.15989,
    "h": 271.3
  },
  "luminance": 0.112
}

Semantic roles & 50–950 ramp

primary

#4255BA

secondary

#C8BF90

accent

#C251D7

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4255BA

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

Preview Lab → · Contrast checker → · Palette generator →