#4559CB#4559CB

#4559CB is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.4% C 0.177 H 271.3°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#4559CB
RGB	rgb(69, 89, 203)
HSL	hsl(231, 56%, 53%)
HSV	hsv(231, 66%, 80%)
CMYK	cmyk(66%, 56.2%, 0%, 20.4%)
CIE-LAB	lab(42.34, 29.16, -61.60)
CIE-LCH	lch(42.34, 68.15, 295.33°)
OKLab	oklab(51.42% 0.0039 -0.1772)
OKLCH	oklch(51.42% 0.177 271.3)
XYZ	xyz(16.8025, 12.7202, 58.0581)
Luminance	0.1272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4559CB #CBB745

analogous

#459CCB #4559CB #7445CB

triadic

#4559CB #CB4559 #59CB45

tetradic

#4559CB #CB459C #CBB745 #45CB74

square

#4559CB #CB459C #CBB745 #45CB74

split-complementary

#4559CB #CB7445 #9CCB45

monochromatic

#212D75 #2E40A5 #4559CB #7584D8 #A5AEE6

Accessibility & contrast

On white

5.92

#4559CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#4559CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4559CB

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4559CB	#FFFFFF	#000000	##FFFFFF
##4559CB	1.00	5.92	3.54	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ACF

Deuteranopia (green-blind)

#005EC9

Tritanopia (blue-blind)

#007589

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4559cb;
/* rgb */ color: rgb(69, 89, 203);
/* oklch */ color: oklch(51.4% 0.177 271.3);

Tailwind

colors: {
  custom: {
    50: '#8787dc',
    500: '#4559cb',
    950: '#000000',
  },
}

SCSS

$custom: #4559cb;
$custom-light: #8787dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4559cb",
  "rgb": {
    "r": 69,
    "g": 89,
    "b": 203
  },
  "hsl": {
    "h": 231.045,
    "s": 56.303,
    "l": 53.333
  },
  "oklch": {
    "l": 0.51415,
    "c": 0.17725,
    "h": 271.3
  },
  "luminance": 0.12722
}

Semantic roles & 50–950 ramp

primary

#4559CB

secondary

#D3CA99

accent

#C948E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0D0B15

muted

#7D7C83

Preview Lab

Preview with #4559CB

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

Preview Lab → · Contrast checker → · Palette generator →