#4451B3#4451B3

#4451B3 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.0% C 0.155 H 273.4°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#4451B3
RGB	rgb(68, 81, 179)
HSL	hsl(233, 45%, 48%)
HSV	hsv(233, 62%, 70%)
CMYK	cmyk(62%, 54.7%, 0%, 29.8%)
CIE-LAB	lab(38.49, 25.73, -53.83)
CIE-LCH	lch(38.49, 59.67, 295.55°)
OKLab	oklab(47.97% 0.0092 -0.1545)
OKLCH	oklch(47.97% 0.155 273.4)
XYZ	xyz(13.4603, 10.3674, 43.9309)
Luminance	0.1037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4451B3 #B3A644

analogous

#4488B3 #4451B3 #6E44B3

triadic

#4451B3 #B34451 #51B344

tetradic

#4451B3 #B34488 #B3A644 #44B36E

square

#4451B3 #B34488 #B3A644 #44B36E

split-complementary

#4451B3 #B36E44 #88B344

monochromatic

#22295A #333D87 #4451B3 #6D77C7 #99A1D8

Accessibility & contrast

On white

6.83

#4451B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#4451B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4451B3

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4451B3	#FFFFFF	#000000	##FFFFFF
##4451B3	1.00	6.83	3.07	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A60B6

Deuteranopia (green-blind)

#0056B1

Tritanopia (blue-blind)

#00687A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #4451b3;
/* rgb */ color: rgb(68, 81, 179);
/* oklch */ color: oklch(48.0% 0.155 273.4);

Tailwind

colors: {
  custom: {
    50: '#8381ca',
    500: '#4451b3',
    950: '#000000',
  },
}

SCSS

$custom: #4451b3;
$custom-light: #8381ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4451b3",
  "rgb": {
    "r": 68,
    "g": 81,
    "b": 179
  },
  "hsl": {
    "h": 232.973,
    "s": 44.939,
    "l": 48.431
  },
  "oklch": {
    "l": 0.47974,
    "c": 0.15476,
    "h": 273.4
  },
  "luminance": 0.10368
}

Semantic roles & 50–950 ramp

primary

#4451B3

secondary

#C4BE8E

accent

#C553D5

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0C0A13

muted

#7D7C82

Preview Lab

Preview with #4451B3

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

Preview Lab → · Contrast checker → · Palette generator →