#4558CB#4558CB

#4558CB is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.2% C 0.178 H 271.5°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#4558CB
RGB	rgb(69, 88, 203)
HSL	hsl(231, 56%, 53%)
HSV	hsv(231, 66%, 80%)
CMYK	cmyk(66%, 56.7%, 0%, 20.4%)
CIE-LAB	lab(42.08, 29.79, -62.01)
CIE-LCH	lch(42.08, 68.79, 295.66°)
OKLab	oklab(51.23% 0.0047 -0.1784)
OKLCH	oklch(51.23% 0.178 271.5)
XYZ	xyz(16.7198, 12.5549, 58.0306)
Luminance	0.1256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4558CB #CBB845

analogous

#459BCB #4558CB #7545CB

triadic

#4558CB #CB4558 #58CB45

tetradic

#4558CB #CB459B #CBB845 #45CB75

square

#4558CB #CB459B #CBB845 #45CB75

split-complementary

#4558CB #CB7545 #9BCB45

monochromatic

#212D75 #2E3FA5 #4558CB #7583D8 #A5AEE6

Accessibility & contrast

On white

5.98

#4558CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#4558CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4558CB

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4558CB	#FFFFFF	#000000	##FFFFFF
##4558CB	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ACF

Deuteranopia (green-blind)

#005DC9

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4558cb;
/* rgb */ color: rgb(69, 88, 203);
/* oklch */ color: oklch(51.2% 0.178 271.5);

Tailwind

colors: {
  custom: {
    50: '#8787dc',
    500: '#4558cb',
    950: '#000000',
  },
}

SCSS

$custom: #4558cb;
$custom-light: #8787dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4558cb",
  "rgb": {
    "r": 69,
    "g": 88,
    "b": 203
  },
  "hsl": {
    "h": 231.493,
    "s": 56.303,
    "l": 53.333
  },
  "oklch": {
    "l": 0.51225,
    "c": 0.17849,
    "h": 271.5
  },
  "luminance": 0.12556
}

Semantic roles & 50–950 ramp

primary

#4558CB

secondary

#D3CB99

accent

#CA48E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0D0B15

muted

#7D7C83

Preview Lab

Preview with #4558CB

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

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