#4043B5#4043B5

#4043B5 is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.3% C 0.176 H 275.6°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#4043B5
RGB	rgb(64, 67, 181)
HSL	hsl(238, 48%, 48%)
HSV	hsv(238, 65%, 71%)
CMYK	cmyk(64.6%, 63%, 0%, 29%)
CIE-LAB	lab(34.88, 34.68, -60.89)
CIE-LCH	lch(34.88, 70.07, 299.66°)
OKLab	oklab(45.28% 0.0173 -0.1755)
OKLCH	oklch(45.28% 0.176 275.6)
XYZ	xyz(12.4593, 8.4394, 44.6795)
Luminance	0.0844 (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

#4043B5 #B5B240

analogous

#407DB5 #4043B5 #7840B5

triadic

#4043B5 #B54043 #43B540

tetradic

#4043B5 #B5407D #B5B240 #40B578

square

#4043B5 #B5407D #B5B240 #40B578

split-complementary

#4043B5 #B57840 #7DB540

monochromatic

#20225B #303288 #4043B5 #686BCA #9697DA

Accessibility & contrast

On white

7.81

#4043B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#4043B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4043B5

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4043B5	#FFFFFF	#000000	##FFFFFF
##4043B5	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B9

Deuteranopia (green-blind)

#004DB3

Tritanopia (blue-blind)

#006075

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4043b5;
/* rgb */ color: rgb(64, 67, 181);
/* oklch */ color: oklch(45.3% 0.176 275.6);

Tailwind

colors: {
  custom: {
    50: '#8277cc',
    500: '#4043b5',
    950: '#000000',
  },
}

SCSS

$custom: #4043b5;
$custom-light: #8277cc;
$custom-dark: #000000;

JSON

{
  "hex": "#4043b5",
  "rgb": {
    "r": 64,
    "g": 67,
    "b": 181
  },
  "hsl": {
    "h": 238.462,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.45275,
    "c": 0.17633,
    "h": 275.6
  },
  "luminance": 0.0844
}

Semantic roles & 50–950 ramp

primary

#4043B5

secondary

#C5C48B

accent

#D450D7

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4043B5

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

Preview Lab → · Contrast checker → · Palette generator →