#4451B5#4451B5

#4451B5 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.1% C 0.158 H 273.4°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#4451B5
RGB	rgb(68, 81, 181)
HSL	hsl(233, 45%, 49%)
HSV	hsv(233, 62%, 71%)
CMYK	cmyk(62.4%, 55.2%, 0%, 29%)
CIE-LAB	lab(38.64, 26.43, -54.78)
CIE-LCH	lch(38.64, 60.82, 295.75°)
OKLab	oklab(48.13% 0.0093 -0.1573)
OKLCH	oklch(48.13% 0.158 273.4)
XYZ	xyz(13.6641, 10.4489, 45.0039)
Luminance	0.1045 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4451B5 #B5A844

analogous

#448AB5 #4451B5 #7044B5

triadic

#4451B5 #B54451 #51B544

tetradic

#4451B5 #B5448A #B5A844 #44B570

square

#4451B5 #B5448A #B5A844 #44B570

split-complementary

#4451B5 #B57044 #8AB544

monochromatic

#23295C #333D89 #4451B5 #6E78C8 #9AA1D9

Accessibility & contrast

On white

6.80

#4451B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#4451B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4451B5

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4451B5	#FFFFFF	#000000	##FFFFFF
##4451B5	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0260B8

Deuteranopia (green-blind)

#0056B3

Tritanopia (blue-blind)

#00697B

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #4451b5;
/* rgb */ color: rgb(68, 81, 181);
/* oklch */ color: oklch(48.1% 0.158 273.4);

Tailwind

colors: {
  custom: {
    50: '#8381cc',
    500: '#4451b5',
    950: '#000000',
  },
}

SCSS

$custom: #4451b5;
$custom-light: #8381cc;
$custom-dark: #000000;

JSON

{
  "hex": "#4451b5",
  "rgb": {
    "r": 68,
    "g": 81,
    "b": 181
  },
  "hsl": {
    "h": 233.097,
    "s": 45.382,
    "l": 48.824
  },
  "oklch": {
    "l": 0.48126,
    "c": 0.15754,
    "h": 273.4
  },
  "luminance": 0.1045
}

Semantic roles & 50–950 ramp

primary

#4451B5

secondary

#C5BF90

accent

#C653D5

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A13

muted

#7D7C82

Preview Lab

Preview with #4451B5

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

Preview Lab → · Contrast checker → · Palette generator →