#40368E#40368E

#40368E is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.7% C 0.140 H 283.1°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#40368E
RGB	rgb(64, 54, 142)
HSL	hsl(247, 45%, 38%)
HSV	hsv(247, 62%, 56%)
CMYK	cmyk(54.9%, 62%, 0%, 44.3%)
CIE-LAB	lab(28.59, 29.75, -47.58)
CIE-LCH	lch(28.59, 56.12, 302.01°)
OKLab	oklab(39.68% 0.0318 -0.1364)
OKLCH	oklch(39.68% 0.14 283.1)
XYZ	xyz(8.3145, 5.6808, 26.2443)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40368E #848E36

analogous

#36588E #40368E #6C368E

triadic

#40368E #8E4036 #368E40

tetradic

#40368E #8E3658 #848E36 #368E6C

square

#40368E #8E3658 #848E36 #368E6C

split-complementary

#40368E #8E6C36 #588E36

monochromatic

#181435 #2C2562 #40368E #5548B9 #7E74CA

Accessibility & contrast

On white

9.83

#40368E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#40368E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40368E

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40368E	#FFFFFF	#000000	##FFFFFF
##40368E	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004691

Deuteranopia (green-blind)

#00408C

Tritanopia (blue-blind)

#1E4B5C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #40368e;
/* rgb */ color: rgb(64, 54, 142);
/* oklch */ color: oklch(39.7% 0.140 283.1);

Tailwind

colors: {
  custom: {
    50: '#7c6db0',
    500: '#40368e',
    950: '#000000',
  },
}

SCSS

$custom: #40368e;
$custom-light: #7c6db0;
$custom-dark: #000000;

JSON

{
  "hex": "#40368e",
  "rgb": {
    "r": 64,
    "g": 54,
    "b": 142
  },
  "hsl": {
    "h": 246.818,
    "s": 44.898,
    "l": 38.431
  },
  "oklch": {
    "l": 0.39677,
    "c": 0.14009,
    "h": 283.1
  },
  "luminance": 0.05681
}

Semantic roles & 50–950 ramp

primary

#40368E

secondary

#ABB36D

accent

#D553C6

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #40368E

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

Preview Lab → · Contrast checker → · Palette generator →