#40499D#40499D

#40499D is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.5% C 0.135 H 274.9°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#40499D
RGB	rgb(64, 73, 157)
HSL	hsl(234, 42%, 43%)
HSV	hsv(234, 59%, 62%)
CMYK	cmyk(59.2%, 53.5%, 0%, 38.4%)
CIE-LAB	lab(34.58, 22.52, -47.05)
CIE-LCH	lch(34.58, 52.16, 295.58°)
OKLab	oklab(44.47% 0.0115 -0.1347)
OKLCH	oklch(44.47% 0.135 274.9)
XYZ	xyz(10.5807, 8.2886, 32.9340)
Luminance	0.0829 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40499D #9D9440

analogous

#40779D #40499D #66409D

triadic

#40499D #9D4049 #499D40

tetradic

#40499D #9D4077 #9D9440 #409D66

square

#40499D #9D4077 #9D9440 #409D66

split-complementary

#40499D #9D6640 #779D40

monochromatic

#1D2146 #2E3572 #40499D #5D66BD #898FCF

Accessibility & contrast

On white

7.90

#40499D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#40499D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40499D

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40499D	#FFFFFF	#000000	##FFFFFF
##40499D	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1855A0

Deuteranopia (green-blind)

#004D9B

Tritanopia (blue-blind)

#005C6C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #40499d;
/* rgb */ color: rgb(64, 73, 157);
/* oklch */ color: oklch(44.5% 0.135 274.9);

Tailwind

colors: {
  custom: {
    50: '#7d7bba',
    500: '#40499d',
    950: '#000000',
  },
}

SCSS

$custom: #40499d;
$custom-light: #7d7bba;
$custom-dark: #000000;

JSON

{
  "hex": "#40499d",
  "rgb": {
    "r": 64,
    "g": 73,
    "b": 157
  },
  "hsl": {
    "h": 234.194,
    "s": 42.081,
    "l": 43.333
  },
  "oklch": {
    "l": 0.44475,
    "c": 0.13522,
    "h": 274.9
  },
  "luminance": 0.08289
}

Semantic roles & 50–950 ramp

primary

#40499D

secondary

#B9B47F

accent

#C656D2

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #40499D

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

Preview Lab → · Contrast checker → · Palette generator →