#403BA0#403BA0

#403BA0 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.1% C 0.158 H 279.3°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#403BA0
RGB	rgb(64, 59, 160)
HSL	hsl(243, 46%, 43%)
HSV	hsv(243, 63%, 63%)
CMYK	cmyk(60%, 63.1%, 0%, 37.3%)
CIE-LAB	lab(31.24, 32.58, -54.27)
CIE-LCH	lch(31.24, 63.30, 300.98°)
OKLab	oklab(42.07% 0.0257 -0.1561)
OKLCH	oklch(42.07% 0.158 279.3)
XYZ	xyz(10.0215, 6.7553, 34.0267)
Luminance	0.0676 (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

#403BA0 #9BA03B

analogous

#3B69A0 #403BA0 #723BA0

triadic

#403BA0 #A0403B #3BA040

tetradic

#403BA0 #A03B69 #9BA03B #3BA072

square

#403BA0 #A03B69 #9BA03B #3BA072

split-complementary

#403BA0 #A0723B #69A03B

monochromatic

#1C1A47 #2E2B73 #403BA0 #5C57C1 #8884D2

Accessibility & contrast

On white

8.93

#403BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#403BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403BA0

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403BA0	#FFFFFF	#000000	##FFFFFF
##403BA0	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA3

Deuteranopia (green-blind)

#00469E

Tritanopia (blue-blind)

#005468

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #403ba0;
/* rgb */ color: rgb(64, 59, 160);
/* oklch */ color: oklch(42.1% 0.158 279.3);

Tailwind

colors: {
  custom: {
    50: '#7f71bd',
    500: '#403ba0',
    950: '#000000',
  },
}

SCSS

$custom: #403ba0;
$custom-light: #7f71bd;
$custom-dark: #000000;

JSON

{
  "hex": "#403ba0",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 160
  },
  "hsl": {
    "h": 242.97,
    "s": 46.119,
    "l": 42.941
  },
  "oklch": {
    "l": 0.42072,
    "c": 0.15817,
    "h": 279.3
  },
  "luminance": 0.06756
}

Semantic roles & 50–950 ramp

primary

#403BA0

secondary

#B8BC7B

accent

#D652CF

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #403BA0

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

Preview Lab → · Contrast checker → · Palette generator →