#4577DD#4577DD

#4577DD is a mid, vivid blue. Relative luminance 0.197; OKLCH L 58.7% C 0.165 H 262.7°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#4577DD
RGB	rgb(69, 119, 221)
HSL	hsl(220, 69%, 57%)
HSV	hsv(220, 69%, 87%)
CMYK	cmyk(68.8%, 46.2%, 0%, 13.3%)
CIE-LAB	lab(51.47, 16.63, -57.13)
CIE-LCH	lch(51.47, 59.50, 286.23°)
OKLab	oklab(58.72% -0.0208 -0.1636)
OKLCH	oklch(58.72% 0.165 262.7)
XYZ	xyz(22.0976, 19.6771, 71.0261)
Luminance	0.1968 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4577DD #DDAB45

analogous

#45C3DD #4577DD #5F45DD

triadic

#4577DD #DD4577 #77DD45

tetradic

#4577DD #DD45C3 #DDAB45 #45DD5F

square

#4577DD #DD45C3 #DDAB45 #45DD5F

split-complementary

#4577DD #DD5F45 #C3DD45

monochromatic

#1A408E #2357C1 #4577DD #799DE6 #ACC3F0

Accessibility & contrast

On white

4.25

#4577DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#4577DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4577DD

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4577DD	#FFFFFF	#000000	##000000
##4577DD	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4282E1

Deuteranopia (green-blind)

#2274DB

Tritanopia (blue-blind)

#008F9F

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #4577dd;
/* rgb */ color: rgb(69, 119, 221);
/* oklch */ color: oklch(58.7% 0.165 262.7);

Tailwind

colors: {
  custom: {
    50: '#899de8',
    500: '#4577dd',
    950: '#000000',
  },
}

SCSS

$custom: #4577dd;
$custom-light: #899de8;
$custom-dark: #000000;

JSON

{
  "hex": "#4577dd",
  "rgb": {
    "r": 69,
    "g": 119,
    "b": 221
  },
  "hsl": {
    "h": 220.263,
    "s": 69.091,
    "l": 56.863
  },
  "oklch": {
    "l": 0.5872,
    "c": 0.16494,
    "h": 262.7
  },
  "luminance": 0.19679
}

Semantic roles & 50–950 ramp

primary

#4577DD

secondary

#DECAA0

accent

#B23CEC

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4577DD

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

Preview Lab → · Contrast checker → · Palette generator →