#40479A#40479A

#40479A is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.9% C 0.134 H 275.8°. Best body text is #FFFFFF at 8.12:1 contrast (WCAG AA passes).

Color values

HEX	#40479A
RGB	rgb(64, 71, 154)
HSL	hsl(235, 41%, 43%)
HSV	hsv(235, 58%, 60%)
CMYK	cmyk(58.4%, 53.9%, 0%, 39.6%)
CIE-LAB	lab(33.83, 22.79, -46.44)
CIE-LCH	lch(33.83, 51.73, 296.14°)
OKLab	oklab(43.85% 0.0135 -0.1329)
OKLCH	oklch(43.85% 0.134 275.8)
XYZ	xyz(10.1984, 7.9288, 31.5586)
Luminance	0.0793 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40479A #9A9340

analogous

#40749A #40479A #66409A

triadic

#40479A #9A4047 #479A40

tetradic

#40479A #9A4074 #9A9340 #409A66

square

#40479A #9A4074 #9A9340 #409A66

split-complementary

#40479A #9A6640 #749A40

monochromatic

#1C1F44 #2E336F #40479A #5C63BB #878DCD

Accessibility & contrast

On white

8.12

#40479A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#40479A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40479A

8.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40479A	#FFFFFF	#000000	##FFFFFF
##40479A	1.00	8.12	2.59	8.12
#FFFFFF	8.12	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16539D

Deuteranopia (green-blind)

#004C98

Tritanopia (blue-blind)

#065A69

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #40479a;
/* rgb */ color: rgb(64, 71, 154);
/* oklch */ color: oklch(43.9% 0.134 275.8);

Tailwind

colors: {
  custom: {
    50: '#7d7ab8',
    500: '#40479a',
    950: '#000000',
  },
}

SCSS

$custom: #40479a;
$custom-light: #7d7ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#40479a",
  "rgb": {
    "r": 64,
    "g": 71,
    "b": 154
  },
  "hsl": {
    "h": 235.333,
    "s": 41.284,
    "l": 42.745
  },
  "oklch": {
    "l": 0.4385,
    "c": 0.13362,
    "h": 275.8
  },
  "luminance": 0.0793
}

Semantic roles & 50–950 ramp

primary

#40479A

secondary

#B8B37E

accent

#C857D1

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #40479A

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

Preview Lab → · Contrast checker → · Palette generator →