#4551BF#4551BF

#4551BF is a mid, vivid blue. Relative luminance 0.109; OKLCH L 49.0% C 0.171 H 273.6°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#4551BF
RGB	rgb(69, 81, 191)
HSL	hsl(234, 49%, 51%)
HSV	hsv(234, 64%, 75%)
CMYK	cmyk(63.9%, 57.6%, 0%, 25.1%)
CIE-LAB	lab(39.43, 30.06, -59.35)
CIE-LCH	lch(39.43, 66.53, 296.86°)
OKLab	oklab(48.97% 0.0107 -0.1707)
OKLCH	oklch(48.97% 0.171 273.6)
XYZ	xyz(14.7975, 10.9104, 50.6062)
Luminance	0.1091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4551BF #BFB345

analogous

#458EBF #4551BF #7645BF

triadic

#4551BF #BF4551 #51BF45

tetradic

#4551BF #BF458E #BFB345 #45BF76

square

#4551BF #BF458E #BFB345 #45BF76

split-complementary

#4551BF #BF7645 #8EBF45

monochromatic

#232A66 #333C94 #4551BF #737CCF #A0A6DE

Accessibility & contrast

On white

6.60

#4551BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#4551BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4551BF

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4551BF	#FFFFFF	#000000	##FFFFFF
##4551BF	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C3

Deuteranopia (green-blind)

#0058BD

Tritanopia (blue-blind)

#006C80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4551bf;
/* rgb */ color: rgb(69, 81, 191);
/* oklch */ color: oklch(49.0% 0.171 273.6);

Tailwind

colors: {
  custom: {
    50: '#8681d3',
    500: '#4551bf',
    950: '#000000',
  },
}

SCSS

$custom: #4551bf;
$custom-light: #8681d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4551bf",
  "rgb": {
    "r": 69,
    "g": 81,
    "b": 191
  },
  "hsl": {
    "h": 234.098,
    "s": 48.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.48965,
    "c": 0.17104,
    "h": 273.6
  },
  "luminance": 0.10912
}

Semantic roles & 50–950 ramp

primary

#4551BF

secondary

#CBC695

accent

#CB4FD8

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #4551BF

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

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