#4577CB#4577CB

#4577CB is a mid, vivid blue. Relative luminance 0.188; OKLCH L 57.6% C 0.141 H 260.2°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#4577CB
RGB	rgb(69, 119, 203)
HSL	hsl(218, 56%, 53%)
HSV	hsv(218, 66%, 80%)
CMYK	cmyk(66%, 41.4%, 0%, 20.4%)
CIE-LAB	lab(50.42, 10.26, -48.60)
CIE-LCH	lch(50.42, 49.67, 281.92°)
OKLab	oklab(57.57% -0.024 -0.1386)
OKLCH	oklch(57.57% 0.141 260.2)
XYZ	xyz(19.8267, 18.7687, 59.0662)
Luminance	0.1877 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4577CB #CB9945

analogous

#45BACB #4577CB #5645CB

triadic

#4577CB #CB4577 #77CB45

tetradic

#4577CB #CB45BA #CB9945 #45CB56

square

#4577CB #CB45BA #CB9945 #45CB56

split-complementary

#4577CB #CB5645 #BACB45

monochromatic

#214075 #2E5AA5 #4577CB #759AD8 #A5BDE6

Accessibility & contrast

On white

4.42

#4577CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#4577CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4577CB

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4577CB	#FFFFFF	#000000	##000000
##4577CB	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#507FCE

Deuteranopia (green-blind)

#3C72C9

Tritanopia (blue-blind)

#008A97

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4577cb;
/* rgb */ color: rgb(69, 119, 203);
/* oklch */ color: oklch(57.6% 0.141 260.2);

Tailwind

colors: {
  custom: {
    50: '#869ddb',
    500: '#4577cb',
    950: '#000000',
  },
}

SCSS

$custom: #4577cb;
$custom-light: #869ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#4577cb",
  "rgb": {
    "r": 69,
    "g": 119,
    "b": 203
  },
  "hsl": {
    "h": 217.612,
    "s": 56.303,
    "l": 53.333
  },
  "oklch": {
    "l": 0.57567,
    "c": 0.14065,
    "h": 260.2
  },
  "luminance": 0.18771
}

Semantic roles & 50–950 ramp

primary

#4577CB

secondary

#D3BD99

accent

#A748E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4577CB

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

Preview Lab → · Contrast checker → · Palette generator →