#403BB2#403BB2

#403BB2 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.7% C 0.182 H 277.6°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#403BB2
RGB	rgb(64, 59, 178)
HSL	hsl(243, 50%, 46%)
HSV	hsv(243, 67%, 70%)
CMYK	cmyk(64%, 66.9%, 0%, 30.2%)
CIE-LAB	lab(32.77, 38.59, -62.57)
CIE-LCH	lch(32.77, 73.51, 301.67°)
OKLab	oklab(43.66% 0.024 -0.1804)
OKLCH	oklch(43.66% 0.182 277.6)
XYZ	xyz(11.7116, 7.4313, 42.9281)
Luminance	0.0743 (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

#403BB2 #ADB23B

analogous

#3B72B2 #403BB2 #7C3BB2

triadic

#403BB2 #B2403B #3BB240

tetradic

#403BB2 #B23B72 #ADB23B #3BB27C

square

#403BB2 #B23B72 #ADB23B #3BB27C

split-complementary

#403BB2 #B27C3B #72B23B

monochromatic

#1F1D56 #2F2C84 #403BB2 #6460CA #918EDA

Accessibility & contrast

On white

8.45

#403BB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#403BB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403BB2

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403BB2	#FFFFFF	#000000	##FFFFFF
##403BB2	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B6

Deuteranopia (green-blind)

#0048B0

Tritanopia (blue-blind)

#005A71

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #403bb2;
/* rgb */ color: rgb(64, 59, 178);
/* oklch */ color: oklch(43.7% 0.182 277.6);

Tailwind

colors: {
  custom: {
    50: '#8272ca',
    500: '#403bb2',
    950: '#000000',
  },
}

SCSS

$custom: #403bb2;
$custom-light: #8272ca;
$custom-dark: #000000;

JSON

{
  "hex": "#403bb2",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 178
  },
  "hsl": {
    "h": 242.521,
    "s": 50.211,
    "l": 46.471
  },
  "oklch": {
    "l": 0.43656,
    "c": 0.18201,
    "h": 277.6
  },
  "luminance": 0.07432
}

Semantic roles & 50–950 ramp

primary

#403BB2

secondary

#C2C485

accent

#DA4ED4

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #403BB2

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

Preview Lab → · Contrast checker → · Palette generator →