#403A8A#403A8A

#403A8A is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.129 H 282.3°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#403A8A
RGB	rgb(64, 58, 138)
HSL	hsl(245, 41%, 38%)
HSV	hsv(245, 58%, 54%)
CMYK	cmyk(53.6%, 58%, 0%, 45.9%)
CIE-LAB	lab(29.29, 25.85, -43.99)
CIE-LCH	lch(29.29, 51.02, 300.44°)
OKLab	oklab(40.09% 0.0274 -0.1258)
OKLCH	oklch(40.09% 0.129 282.3)
XYZ	xyz(8.2135, 5.9506, 24.7556)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403A8A #848A3A

analogous

#3A5C8A #403A8A #683A8A

triadic

#403A8A #8A403A #3A8A40

tetradic

#403A8A #8A3A5C #848A3A #3A8A68

square

#403A8A #8A3A5C #848A3A #3A8A68

split-complementary

#403A8A #8A683A #5C8A3A

monochromatic

#181634 #2C285F #403A8A #554DB4 #7E78C6

Accessibility & contrast

On white

9.59

#403A8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#403A8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403A8A

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403A8A	#FFFFFF	#000000	##FFFFFF
##403A8A	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01488D

Deuteranopia (green-blind)

#004288

Tritanopia (blue-blind)

#224C5C

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #403a8a;
/* rgb */ color: rgb(64, 58, 138);
/* oklch */ color: oklch(40.1% 0.129 282.3);

Tailwind

colors: {
  custom: {
    50: '#7b70ad',
    500: '#403a8a',
    950: '#000000',
  },
}

SCSS

$custom: #403a8a;
$custom-light: #7b70ad;
$custom-dark: #000000;

JSON

{
  "hex": "#403a8a",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 138
  },
  "hsl": {
    "h": 244.5,
    "s": 40.816,
    "l": 38.431
  },
  "oklch": {
    "l": 0.40093,
    "c": 0.12879,
    "h": 282.3
  },
  "luminance": 0.05951
}

Semantic roles & 50–950 ramp

primary

#403A8A

secondary

#ABB070

accent

#D157C8

background

#F7F6FA

surface

#EEECF4

border

#C9C7CE

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #403A8A

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

Preview Lab → · Contrast checker → · Palette generator →