#40499B#40499B

#40499B is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.3% C 0.132 H 274.9°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#40499B
RGB	rgb(64, 73, 155)
HSL	hsl(234, 42%, 43%)
HSV	hsv(234, 59%, 61%)
CMYK	cmyk(58.7%, 52.9%, 0%, 39.2%)
CIE-LAB	lab(34.44, 21.83, -46.07)
CIE-LCH	lch(34.44, 50.98, 295.35°)
OKLab	oklab(44.33% 0.0114 -0.1318)
OKLCH	oklch(44.33% 0.132 274.9)
XYZ	xyz(10.4114, 8.2209, 32.0421)
Luminance	0.0822 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40499B #9B9240

analogous

#40769B #40499B #64409B

triadic

#40499B #9B4049 #499B40

tetradic

#40499B #9B4076 #9B9240 #409B64

square

#40499B #9B4076 #9B9240 #409B64

split-complementary

#40499B #9B6440 #769B40

monochromatic

#1C2044 #2E3570 #40499B #5C66BC #888FCE

Accessibility & contrast

On white

7.94

#40499B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#40499B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40499B

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40499B	#FFFFFF	#000000	##FFFFFF
##40499B	1.00	7.94	2.64	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B559E

Deuteranopia (green-blind)

#054D99

Tritanopia (blue-blind)

#025C6B

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #40499b;
/* rgb */ color: rgb(64, 73, 155);
/* oklch */ color: oklch(44.3% 0.132 274.9);

Tailwind

colors: {
  custom: {
    50: '#7d7bb9',
    500: '#40499b',
    950: '#000000',
  },
}

SCSS

$custom: #40499b;
$custom-light: #7d7bb9;
$custom-dark: #000000;

JSON

{
  "hex": "#40499b",
  "rgb": {
    "r": 64,
    "g": 73,
    "b": 155
  },
  "hsl": {
    "h": 234.066,
    "s": 41.553,
    "l": 42.941
  },
  "oklch": {
    "l": 0.44327,
    "c": 0.13232,
    "h": 274.9
  },
  "luminance": 0.08222
}

Semantic roles & 50–950 ramp

primary

#40499B

secondary

#B8B37E

accent

#C556D1

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #40499B

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

Preview Lab → · Contrast checker → · Palette generator →