#4047DD#4047DD

#4047DD is a mid, highly saturated blue. Relative luminance 0.108; OKLCH L 49.5% C 0.223 H 272.8°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#4047DD
RGB	rgb(64, 71, 221)
HSL	hsl(237, 70%, 56%)
HSV	hsv(237, 71%, 87%)
CMYK	cmyk(71%, 67.9%, 0%, 13.3%)
CIE-LAB	lab(39.27, 45.76, -76.96)
CIE-LCH	lch(39.27, 89.54, 300.74°)
OKLab	oklab(49.53% 0.0109 -0.2225)
OKLCH	oklch(49.53% 0.223 272.8)
XYZ	xyz(17.4144, 10.8152, 69.5624)
Luminance	0.1082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4047DD #DDD640

analogous

#4095DD #4047DD #8740DD

triadic

#4047DD #DD4047 #47DD40

tetradic

#4047DD #DD4095 #DDD640 #40DD87

square

#4047DD #DD4095 #DDD640 #40DD87

split-complementary

#4047DD #DD8740 #95DD40

monochromatic

#191E8A #2229BE #4047DD #7479E6 #A8ABEF

Accessibility & contrast

On white

6.64

#4047DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#4047DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4047DD

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4047DD	#FFFFFF	#000000	##FFFFFF
##4047DD	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064E2

Deuteranopia (green-blind)

#0055DA

Tritanopia (blue-blind)

#00708C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4047dd;
/* rgb */ color: rgb(64, 71, 221);
/* oklch */ color: oklch(49.5% 0.223 272.8);

Tailwind

colors: {
  custom: {
    50: '#8a7be9',
    500: '#4047dd',
    950: '#000000',
  },
}

SCSS

$custom: #4047dd;
$custom-light: #8a7be9;
$custom-dark: #000000;

JSON

{
  "hex": "#4047dd",
  "rgb": {
    "r": 64,
    "g": 71,
    "b": 221
  },
  "hsl": {
    "h": 237.325,
    "s": 69.778,
    "l": 55.882
  },
  "oklch": {
    "l": 0.49534,
    "c": 0.2228,
    "h": 272.8
  },
  "luminance": 0.10817
}

Semantic roles & 50–950 ramp

primary

#4047DD

secondary

#DDDA9C

accent

#E53BED

background

#F9F7FE

surface

#F2EEFD

border

#CCC9D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #4047DD

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

Preview Lab → · Contrast checker → · Palette generator →