#4050B5#4050B5

#4050B5 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.7% C 0.160 H 272.1°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#4050B5
RGB	rgb(64, 80, 181)
HSL	hsl(232, 48%, 48%)
HSV	hsv(232, 65%, 71%)
CMYK	cmyk(64.6%, 55.8%, 0%, 29%)
CIE-LAB	lab(38.13, 26.39, -55.61)
CIE-LCH	lch(38.13, 61.55, 295.39°)
OKLab	oklab(47.68% 0.0059 -0.1598)
OKLCH	oklch(47.68% 0.16 272.1)
XYZ	xyz(13.3207, 10.1623, 44.9666)
Luminance	0.1016 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4050B5 #B5A540

analogous

#408AB5 #4050B5 #6A40B5

triadic

#4050B5 #B54050 #50B540

tetradic

#4050B5 #B5408A #B5A540 #40B56A

square

#4050B5 #B5408A #B5A540 #40B56A

split-complementary

#4050B5 #B56A40 #8AB540

monochromatic

#20285B #303C88 #4050B5 #6876CA #969FDA

Accessibility & contrast

On white

6.92

#4050B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#4050B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4050B5

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4050B5	#FFFFFF	#000000	##FFFFFF
##4050B5	1.00	6.92	3.03	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FB8

Deuteranopia (green-blind)

#0055B3

Tritanopia (blue-blind)

#00687A

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #4050b5;
/* rgb */ color: rgb(64, 80, 181);
/* oklch */ color: oklch(47.7% 0.160 272.1);

Tailwind

colors: {
  custom: {
    50: '#8180cc',
    500: '#4050b5',
    950: '#000000',
  },
}

SCSS

$custom: #4050b5;
$custom-light: #8180cc;
$custom-dark: #000000;

JSON

{
  "hex": "#4050b5",
  "rgb": {
    "r": 64,
    "g": 80,
    "b": 181
  },
  "hsl": {
    "h": 231.795,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.47684,
    "c": 0.15993,
    "h": 272.1
  },
  "luminance": 0.10164
}

Semantic roles & 50–950 ramp

primary

#4050B5

secondary

#C5BD8B

accent

#C550D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #4050B5

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

Preview Lab → · Contrast checker → · Palette generator →