#40397F#40397F

#40397F is a dark, moderate blue. Relative luminance 0.055; OKLCH L 39.1% C 0.114 H 284.3°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#40397F
RGB	rgb(64, 57, 127)
HSL	hsl(246, 38%, 36%)
HSV	hsv(246, 55%, 50%)
CMYK	cmyk(49.6%, 55.1%, 0%, 50.2%)
CIE-LAB	lab(28.24, 22.87, -38.82)
CIE-LCH	lch(28.24, 45.06, 300.50°)
OKLab	oklab(39.07% 0.0282 -0.1107)
OKLCH	oklch(39.07% 0.114 284.3)
XYZ	xyz(7.4071, 5.5482, 20.7552)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40397F #787F39

analogous

#39557F #40397F #63397F

triadic

#40397F #7F4039 #397F40

tetradic

#40397F #7F3955 #787F39 #397F63

square

#40397F #7F3955 #787F39 #397F63

split-complementary

#40397F #7F6339 #557F39

monochromatic

#15132B #2B2655 #40397F #554CA9 #7A72C0

Accessibility & contrast

On white

9.95

#40397F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#40397F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40397F

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40397F	#FFFFFF	#000000	##FFFFFF
##40397F	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154581

Deuteranopia (green-blind)

#11407D

Tritanopia (blue-blind)

#2A4856

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #40397f;
/* rgb */ color: rgb(64, 57, 127);
/* oklch */ color: oklch(39.1% 0.114 284.3);

Tailwind

colors: {
  custom: {
    50: '#7a6fa5',
    500: '#40397f',
    950: '#000000',
  },
}

SCSS

$custom: #40397f;
$custom-light: #7a6fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#40397f",
  "rgb": {
    "r": 64,
    "g": 57,
    "b": 127
  },
  "hsl": {
    "h": 246,
    "s": 38.043,
    "l": 36.078
  },
  "oklch": {
    "l": 0.39066,
    "c": 0.11421,
    "h": 284.3
  },
  "luminance": 0.05549
}

Semantic roles & 50–950 ramp

primary

#40397F

secondary

#A3A96B

accent

#CE5AC2

background

#F7F6FA

surface

#EEECF4

border

#C9C7CE

text

#09070F

muted

#7B7A7F

Preview Lab

Preview with #40397F

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

Preview Lab → · Contrast checker → · Palette generator →