#4043BF#4043BF

#4043BF is a mid, vivid blue. Relative luminance 0.089; OKLCH L 46.2% C 0.189 H 275.0°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#4043BF
RGB	rgb(64, 67, 191)
HSL	hsl(239, 50%, 50%)
HSV	hsv(239, 66%, 75%)
CMYK	cmyk(66.5%, 64.9%, 0%, 25.1%)
CIE-LAB	lab(35.72, 38.08, -65.41)
CIE-LCH	lch(35.72, 75.69, 300.21°)
OKLab	oklab(46.15% 0.0166 -0.1887)
OKLCH	oklch(46.15% 0.189 275)
XYZ	xyz(13.5224, 8.8647, 50.2786)
Luminance	0.0887 (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

#4043BF #BFBC40

analogous

#4082BF #4043BF #7D40BF

triadic

#4043BF #BF4043 #43BF40

tetradic

#4043BF #BF4082 #BFBC40 #40BF7D

square

#4043BF #BF4082 #BFBC40 #40BF7D

split-complementary

#4043BF #BF7D40 #82BF40

monochromatic

#212363 #313391 #4043BF #6E70CE #9C9DDE

Accessibility & contrast

On white

7.57

#4043BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#4043BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4043BF

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4043BF	#FFFFFF	#000000	##FFFFFF
##4043BF	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC3

Deuteranopia (green-blind)

#004EBD

Tritanopia (blue-blind)

#00637B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #4043bf;
/* rgb */ color: rgb(64, 67, 191);
/* oklch */ color: oklch(46.2% 0.189 275.0);

Tailwind

colors: {
  custom: {
    50: '#8477d3',
    500: '#4043bf',
    950: '#000000',
  },
}

SCSS

$custom: #4043bf;
$custom-light: #8477d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4043bf",
  "rgb": {
    "r": 64,
    "g": 67,
    "b": 191
  },
  "hsl": {
    "h": 238.583,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.4615,
    "c": 0.18946,
    "h": 275
  },
  "luminance": 0.08866
}

Semantic roles & 50–950 ramp

primary

#4043BF

secondary

#CAC991

accent

#D64ED9

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #4043BF

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

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