#4071DD#4071DD

#4071DD is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.3% C 0.174 H 263.5°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#4071DD
RGB	rgb(64, 113, 221)
HSL	hsl(221, 70%, 56%)
HSV	hsv(221, 71%, 87%)
CMYK	cmyk(71%, 48.9%, 0%, 13.3%)
CIE-LAB	lab(49.64, 19.66, -60.08)
CIE-LCH	lch(49.64, 63.22, 288.12°)
OKLab	oklab(57.26% -0.0196 -0.1725)
OKLCH	oklch(57.26% 0.174 263.5)
XYZ	xyz(21.0660, 18.1185, 70.7796)
Luminance	0.1812 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4071DD #DDAC40

analogous

#40BFDD #4071DD #5D40DD

triadic

#4071DD #DD4071 #71DD40

tetradic

#4071DD #DD40BF #DDAC40 #40DD5D

square

#4071DD #DD40BF #DDAC40 #40DD5D

split-complementary

#4071DD #DD5D40 #BFDD40

monochromatic

#193C8A #2253BE #4071DD #7498E6 #A8BEEF

Accessibility & contrast

On white

4.54

#4071DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#4071DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4071DD

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4071DD	#FFFFFF	#000000	##000000
##4071DD	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#337EE1

Deuteranopia (green-blind)

#006FDB

Tritanopia (blue-blind)

#008B9C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4071dd;
/* rgb */ color: rgb(64, 113, 221);
/* oklch */ color: oklch(57.3% 0.174 263.5);

Tailwind

colors: {
  custom: {
    50: '#8899e8',
    500: '#4071dd',
    950: '#000000',
  },
}

SCSS

$custom: #4071dd;
$custom-light: #8899e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4071dd",
  "rgb": {
    "r": 64,
    "g": 113,
    "b": 221
  },
  "hsl": {
    "h": 221.274,
    "s": 69.778,
    "l": 55.882
  },
  "oklch": {
    "l": 0.57262,
    "c": 0.17361,
    "h": 263.5
  },
  "luminance": 0.18121
}

Semantic roles & 50–950 ramp

primary

#4071DD

secondary

#DDC99C

accent

#B53BED

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4071DD

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

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