#4555AB#4555AB

#4555AB is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.3% C 0.138 H 272.3°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#4555AB
RGB	rgb(69, 85, 171)
HSL	hsl(231, 43%, 47%)
HSV	hsv(231, 60%, 67%)
CMYK	cmyk(59.6%, 50.3%, 0%, 32.9%)
CIE-LAB	lab(39.07, 20.57, -48.16)
CIE-LCH	lch(39.07, 52.37, 293.12°)
OKLab	oklab(48.25% 0.0056 -0.1377)
OKLCH	oklch(48.25% 0.138 272.3)
XYZ	xyz(13.0510, 10.7015, 39.8980)
Luminance	0.1070 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4555AB #AB9B45

analogous

#4588AB #4555AB #6845AB

triadic

#4555AB #AB4555 #55AB45

tetradic

#4555AB #AB4588 #AB9B45 #45AB68

square

#4555AB #AB4588 #AB9B45 #45AB68

split-complementary

#4555AB #AB6845 #88AB45

monochromatic

#222A54 #333F7F #4555AB #6A78C3 #96A0D5

Accessibility & contrast

On white

6.69

#4555AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#4555AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4555AB

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4555AB	#FFFFFF	#000000	##FFFFFF
##4555AB	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)

#2861AE

Deuteranopia (green-blind)

#1458A9

Tritanopia (blue-blind)

#006978

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4555ab;
/* rgb */ color: rgb(69, 85, 171);
/* oklch */ color: oklch(48.3% 0.138 272.3);

Tailwind

colors: {
  custom: {
    50: '#8284c4',
    500: '#4555ab',
    950: '#000000',
  },
}

SCSS

$custom: #4555ab;
$custom-light: #8284c4;
$custom-dark: #000000;

JSON

{
  "hex": "#4555ab",
  "rgb": {
    "r": 69,
    "g": 85,
    "b": 171
  },
  "hsl": {
    "h": 230.588,
    "s": 42.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.48253,
    "c": 0.13785,
    "h": 272.3
  },
  "luminance": 0.10702
}

Semantic roles & 50–950 ramp

primary

#4555AB

secondary

#C0B88B

accent

#BF56D2

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #4555AB

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

Preview Lab → · Contrast checker → · Palette generator →