#40397D#40397D

#40397D is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.9% C 0.111 H 284.6°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#40397D
RGB	rgb(64, 57, 125)
HSL	hsl(246, 37%, 36%)
HSV	hsv(246, 54%, 49%)
CMYK	cmyk(48.8%, 54.4%, 0%, 51%)
CIE-LAB	lab(28.11, 22.21, -37.79)
CIE-LCH	lch(28.11, 43.83, 300.45°)
OKLab	oklab(38.92% 0.0281 -0.1076)
OKLCH	oklch(38.92% 0.111 284.6)
XYZ	xyz(7.2781, 5.4966, 20.0755)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40397D #767D39

analogous

#39547D #40397D #62397D

triadic

#40397D #7D4039 #397D40

tetradic

#40397D #7D3954 #767D39 #397D62

square

#40397D #7D3954 #767D39 #397D62

split-complementary

#40397D #7D6239 #547D39

monochromatic

#151329 #2A2653 #40397D #564CA7 #7A72BF

Accessibility & contrast

On white

10.00

#40397D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#40397D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40397D

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40397D	#FFFFFF	#000000	##FFFFFF
##40397D	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18447F

Deuteranopia (green-blind)

#15407C

Tritanopia (blue-blind)

#2B4855

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #40397d;
/* rgb */ color: rgb(64, 57, 125);
/* oklch */ color: oklch(38.9% 0.111 284.6);

Tailwind

colors: {
  custom: {
    50: '#796fa3',
    500: '#40397d',
    950: '#000000',
  },
}

SCSS

$custom: #40397d;
$custom-light: #796fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#40397d",
  "rgb": {
    "r": 64,
    "g": 57,
    "b": 125
  },
  "hsl": {
    "h": 246.176,
    "s": 37.363,
    "l": 35.686
  },
  "oklch": {
    "l": 0.38919,
    "c": 0.11124,
    "h": 284.6
  },
  "luminance": 0.05497
}

Semantic roles & 50–950 ramp

primary

#40397D

secondary

#A1A86A

accent

#CD5AC2

background

#F7F6FA

surface

#EEECF4

border

#C9C7CE

text

#09070F

muted

#7B7A7F

Preview Lab

Preview with #40397D

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

Preview Lab → · Contrast checker → · Palette generator →