#4451BB#4451BB

#4451BB is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.6% C 0.166 H 273.3°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#4451BB
RGB	rgb(68, 81, 187)
HSL	hsl(233, 47%, 50%)
HSV	hsv(233, 64%, 73%)
CMYK	cmyk(63.6%, 56.7%, 0%, 26.7%)
CIE-LAB	lab(39.07, 28.51, -57.60)
CIE-LCH	lch(39.07, 64.27, 296.34°)
OKLab	oklab(48.59% 0.0095 -0.1656)
OKLCH	oklch(48.59% 0.166 273.3)
XYZ	xyz(14.2930, 10.7004, 48.3163)
Luminance	0.1070 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4451BB #BBAE44

analogous

#448DBB #4451BB #7244BB

triadic

#4451BB #BB4451 #51BB44

tetradic

#4451BB #BB448D #BBAE44 #44BB72

square

#4451BB #BB448D #BBAE44 #44BB72

split-complementary

#4451BB #BB7244 #8DBB44

monochromatic

#232A61 #343E8E #4451BB #717BCB #9EA5DC

Accessibility & contrast

On white

6.69

#4451BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#4451BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4451BB

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4451BB	#FFFFFF	#000000	##FFFFFF
##4451BB	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061BF

Deuteranopia (green-blind)

#0057B9

Tritanopia (blue-blind)

#006A7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4451bb;
/* rgb */ color: rgb(68, 81, 187);
/* oklch */ color: oklch(48.6% 0.166 273.3);

Tailwind

colors: {
  custom: {
    50: '#8481d0',
    500: '#4451bb',
    950: '#000000',
  },
}

SCSS

$custom: #4451bb;
$custom-light: #8481d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4451bb",
  "rgb": {
    "r": 68,
    "g": 81,
    "b": 187
  },
  "hsl": {
    "h": 233.445,
    "s": 46.667,
    "l": 50
  },
  "oklch": {
    "l": 0.48589,
    "c": 0.16584,
    "h": 273.3
  },
  "luminance": 0.10702
}

Semantic roles & 50–950 ramp

primary

#4451BB

secondary

#C8C293

accent

#C851D6

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4451BB

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

Preview Lab → · Contrast checker → · Palette generator →