#403BBC#403BBC

#403BBC is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.6% C 0.195 H 276.7°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#403BBC
RGB	rgb(64, 59, 188)
HSL	hsl(242, 52%, 48%)
HSV	hsv(242, 69%, 74%)
CMYK	cmyk(66%, 68.6%, 0%, 26.3%)
CIE-LAB	lab(33.66, 41.90, -67.02)
CIE-LCH	lch(33.66, 79.04, 302.01°)
OKLab	oklab(44.58% 0.0228 -0.1935)
OKLCH	oklch(44.58% 0.195 276.7)
XYZ	xyz(12.7525, 7.8477, 48.4099)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.75

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403BBC #B7BC3B

analogous

#3B76BC #403BBC #803BBC

triadic

#403BBC #BC403B #3BBC40

tetradic

#403BBC #BC3B76 #B7BC3B #3BBC80

square

#403BBC #BC3B76 #B7BC3B #3BBC80

split-complementary

#403BBC #BC803B #76BC3B

monochromatic

#201E5F #302C8D #403BBC #6965CF #9794DD

Accessibility & contrast

On white

8.17

#403BBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#403BBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403BBC

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403BBC	#FFFFFF	#000000	##FFFFFF
##403BBC	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C0

Deuteranopia (green-blind)

#004ABA

Tritanopia (blue-blind)

#005E77

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #403bbc;
/* rgb */ color: rgb(64, 59, 188);
/* oklch */ color: oklch(44.6% 0.195 276.7);

Tailwind

colors: {
  custom: {
    50: '#8472d1',
    500: '#403bbc',
    950: '#000000',
  },
}

SCSS

$custom: #403bbc;
$custom-light: #8472d1;
$custom-dark: #000000;

JSON

{
  "hex": "#403bbc",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 188
  },
  "hsl": {
    "h": 242.326,
    "s": 52.227,
    "l": 48.431
  },
  "oklch": {
    "l": 0.44577,
    "c": 0.19479,
    "h": 276.7
  },
  "luminance": 0.07849
}

Semantic roles & 50–950 ramp

primary

#403BBC

secondary

#C6C98A

accent

#DC4CD6

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #403BBC

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

Preview Lab → · Contrast checker → · Palette generator →