#40599C#40599C

#40599C is a mid, moderate blue. Relative luminance 0.106; OKLCH L 47.8% C 0.112 H 266.8°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#40599C
RGB	rgb(64, 89, 156)
HSL	hsl(224, 42%, 43%)
HSV	hsv(224, 59%, 61%)
CMYK	cmyk(59%, 42.9%, 0%, 38.8%)
CIE-LAB	lab(38.96, 11.74, -39.43)
CIE-LCH	lch(38.96, 41.14, 286.58°)
OKLab	oklab(47.79% -0.0063 -0.1121)
OKLCH	oklch(47.79% 0.112 266.8)
XYZ	xyz(11.6855, 10.6341, 32.8828)
Luminance	0.1064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40599C #9C8340

analogous

#40879C #40599C #55409C

triadic

#40599C #9C4059 #599C40

tetradic

#40599C #9C4087 #9C8340 #409C55

square

#40599C #9C4087 #9C8340 #409C55

split-complementary

#40599C #9C5540 #879C40

monochromatic

#1C2745 #2E4071 #40599C #5D77BC #889BCE

Accessibility & contrast

On white

6.72

#40599C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#40599C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #40599C

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40599C	#FFFFFF	#000000	##FFFFFF
##40599C	1.00	6.72	3.13	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C609F

Deuteranopia (green-blind)

#30589B

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #40599c;
/* rgb */ color: rgb(64, 89, 156);
/* oklch */ color: oklch(47.8% 0.112 266.8);

Tailwind

colors: {
  custom: {
    50: '#7d87b9',
    500: '#40599c',
    950: '#000000',
  },
}

SCSS

$custom: #40599c;
$custom-light: #7d87b9;
$custom-dark: #000000;

JSON

{
  "hex": "#40599c",
  "rgb": {
    "r": 64,
    "g": 89,
    "b": 156
  },
  "hsl": {
    "h": 223.696,
    "s": 41.818,
    "l": 43.137
  },
  "oklch": {
    "l": 0.47786,
    "c": 0.11233,
    "h": 266.8
  },
  "luminance": 0.10635
}

Semantic roles & 50–950 ramp

primary

#40599C

secondary

#B9A97F

accent

#B056D2

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B11

muted

#7C7C80

Preview Lab

Preview with #40599C

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

Preview Lab → · Contrast checker → · Palette generator →