#40507A#40507A

#40507A is a dark, moderate blue. Relative luminance 0.082; OKLCH L 43.7% C 0.073 H 267.5°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#40507A
RGB	rgb(64, 80, 122)
HSL	hsl(223, 31%, 36%)
HSV	hsv(223, 48%, 48%)
CMYK	cmyk(47.5%, 34.4%, 0%, 52.2%)
CIE-LAB	lab(34.46, 6.04, -25.83)
CIE-LCH	lch(34.46, 26.52, 283.17°)
OKLab	oklab(43.71% -0.0032 -0.0725)
OKLCH	oklch(43.71% 0.073 267.5)
XYZ	xyz(8.4947, 8.2320, 19.5499)
Luminance	0.0823 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40507A #7A6A40

analogous

#406D7A #40507A #4D407A

triadic

#40507A #7A4050 #507A40

tetradic

#40507A #7A406D #7A6A40 #407A4D

square

#40507A #7A406D #7A6A40 #407A4D

split-complementary

#40507A #7A4D40 #6D7A40

monochromatic

#161B2A #2B3652 #40507A #556AA2 #7B8CBA

Accessibility & contrast

On white

7.94

#40507A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#40507A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40507A

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40507A	#FFFFFF	#000000	##FFFFFF
##40507A	1.00	7.94	2.65	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#41547C

Deuteranopia (green-blind)

#3B4F79

Tritanopia (blue-blind)

#2A595F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #40507a;
/* rgb */ color: rgb(64, 80, 122);
/* oklch */ color: oklch(43.7% 0.073 267.5);

Tailwind

colors: {
  custom: {
    50: '#7880a0',
    500: '#40507a',
    950: '#000000',
  },
}

SCSS

$custom: #40507a;
$custom-light: #7880a0;
$custom-dark: #000000;

JSON

{
  "hex": "#40507a",
  "rgb": {
    "r": 64,
    "g": 80,
    "b": 122
  },
  "hsl": {
    "h": 223.448,
    "s": 31.183,
    "l": 36.471
  },
  "oklch": {
    "l": 0.43707,
    "c": 0.07259,
    "h": 267.5
  },
  "luminance": 0.08232
}

Semantic roles & 50–950 ramp

primary

#40507A

secondary

#A49672

accent

#AB60C7

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#090A0F

muted

#7B7C7E

Preview Lab

Preview with #40507A

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

Preview Lab → · Contrast checker → · Palette generator →