#4783DD#4783DD

#4783DD is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.4% C 0.151 H 258.4°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#4783DD
RGB	rgb(71, 131, 221)
HSL	hsl(216, 69%, 57%)
HSV	hsv(216, 68%, 87%)
CMYK	cmyk(67.9%, 40.7%, 0%, 13.3%)
CIE-LAB	lab(54.86, 9.57, -51.71)
CIE-LCH	lch(54.86, 52.58, 280.48°)
OKLab	oklab(61.35% -0.0303 -0.1475)
OKLCH	oklch(61.35% 0.151 258.4)
XYZ	xyz(23.7613, 22.7902, 71.5393)
Luminance	0.2279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4783DD #DDA147

analogous

#47CEDD #4783DD #5647DD

triadic

#4783DD #DD4783 #83DD47

tetradic

#4783DD #DD47CE #DDA147 #47DD56

square

#4783DD #DD47CE #DDA147 #47DD56

split-complementary

#4783DD #DD5647 #CEDD47

monochromatic

#1A498F #2464C3 #4783DD #7BA6E7 #AEC9F0

Accessibility & contrast

On white

3.78

#4783DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#4783DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4783DD

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4783DD	#FFFFFF	#000000	##000000
##4783DD	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#598BE1

Deuteranopia (green-blind)

#417DDB

Tritanopia (blue-blind)

#0098A5

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4783dd;
/* rgb */ color: rgb(71, 131, 221);
/* oklch */ color: oklch(61.4% 0.151 258.4);

Tailwind

colors: {
  custom: {
    50: '#8aa6e8',
    500: '#4783dd',
    950: '#000000',
  },
}

SCSS

$custom: #4783dd;
$custom-light: #8aa6e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4783dd",
  "rgb": {
    "r": 71,
    "g": 131,
    "b": 221
  },
  "hsl": {
    "h": 216,
    "s": 68.807,
    "l": 57.255
  },
  "oklch": {
    "l": 0.61354,
    "c": 0.15056,
    "h": 258.4
  },
  "luminance": 0.22793
}

Semantic roles & 50–950 ramp

primary

#4783DD

secondary

#DEC6A2

accent

#A53CEC

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4783DD

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

Preview Lab → · Contrast checker → · Palette generator →