#4377DD#4377DD

#4377DD is a mid, vivid blue. Relative luminance 0.196; OKLCH L 58.6% C 0.166 H 262.2°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#4377DD
RGB	rgb(67, 119, 221)
HSL	hsl(220, 69%, 56%)
HSV	hsv(220, 70%, 87%)
CMYK	cmyk(69.7%, 46.2%, 0%, 13.3%)
CIE-LAB	lab(51.39, 16.34, -57.26)
CIE-LCH	lch(51.39, 59.55, 285.92°)
OKLab	oklab(58.63% -0.0224 -0.1641)
OKLCH	oklch(58.63% 0.166 262.2)
XYZ	xyz(21.9581, 19.6051, 71.0195)
Luminance	0.1961 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4377DD #DDA943

analogous

#43C4DD #4377DD #5C43DD

triadic

#4377DD #DD4377 #77DD43

tetradic

#4377DD #DD43C4 #DDA943 #43DD5C

square

#4377DD #DD43C4 #DDA943 #43DD5C

split-complementary

#4377DD #DD5C43 #C4DD43

monochromatic

#19408C #2358C0 #4377DD #779CE6 #ABC2F0

Accessibility & contrast

On white

4.27

#4377DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#4377DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4377DD

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4377DD	#FFFFFF	#000000	##000000
##4377DD	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4282E1

Deuteranopia (green-blind)

#2074DB

Tritanopia (blue-blind)

#008F9F

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4377dd;
/* rgb */ color: rgb(67, 119, 221);
/* oklch */ color: oklch(58.6% 0.166 262.2);

Tailwind

colors: {
  custom: {
    50: '#899de8',
    500: '#4377dd',
    950: '#000000',
  },
}

SCSS

$custom: #4377dd;
$custom-light: #899de8;
$custom-dark: #000000;

JSON

{
  "hex": "#4377dd",
  "rgb": {
    "r": 67,
    "g": 119,
    "b": 221
  },
  "hsl": {
    "h": 219.74,
    "s": 69.369,
    "l": 56.471
  },
  "oklch": {
    "l": 0.58634,
    "c": 0.16558,
    "h": 262.2
  },
  "luminance": 0.19607
}

Semantic roles & 50–950 ramp

primary

#4377DD

secondary

#DEC89E

accent

#B13CEC

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4377DD

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

Preview Lab → · Contrast checker → · Palette generator →