#4478DD#4478DD

#4478DD is a mid, vivid blue. Relative luminance 0.199; OKLCH L 58.9% C 0.164 H 262.1°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#4478DD
RGB	rgb(68, 120, 221)
HSL	hsl(220, 69%, 57%)
HSV	hsv(220, 69%, 87%)
CMYK	cmyk(69.2%, 45.7%, 0%, 13.3%)
CIE-LAB	lab(51.70, 15.86, -56.76)
CIE-LCH	lch(51.70, 58.93, 285.61°)
OKLab	oklab(58.89% -0.0225 -0.1625)
OKLCH	oklch(58.89% 0.164 262.1)
XYZ	xyz(22.1469, 19.8801, 71.0627)
Luminance	0.1988 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4478DD #DDA944

analogous

#44C5DD #4478DD #5D44DD

triadic

#4478DD #DD4478 #78DD44

tetradic

#4478DD #DD44C5 #DDA944 #44DD5D

square

#4478DD #DD44C5 #DDA944 #44DD5D

split-complementary

#4478DD #DD5D44 #C5DD44

monochromatic

#1A418D #2359C1 #4478DD #789DE6 #ACC3F0

Accessibility & contrast

On white

4.22

#4478DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#4478DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4478DD

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4478DD	#FFFFFF	#000000	##000000
##4478DD	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4483E1

Deuteranopia (green-blind)

#2475DB

Tritanopia (blue-blind)

#0090A0

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #4478dd;
/* rgb */ color: rgb(68, 120, 221);
/* oklch */ color: oklch(58.9% 0.164 262.1);

Tailwind

colors: {
  custom: {
    50: '#899ee8',
    500: '#4478dd',
    950: '#000000',
  },
}

SCSS

$custom: #4478dd;
$custom-light: #899ee8;
$custom-dark: #000000;

JSON

{
  "hex": "#4478dd",
  "rgb": {
    "r": 68,
    "g": 120,
    "b": 221
  },
  "hsl": {
    "h": 219.608,
    "s": 69.231,
    "l": 56.667
  },
  "oklch": {
    "l": 0.58886,
    "c": 0.16409,
    "h": 262.1
  },
  "luminance": 0.19882
}

Semantic roles & 50–950 ramp

primary

#4478DD

secondary

#DEC89F

accent

#B03CEC

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4478DD

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

Preview Lab → · Contrast checker → · Palette generator →