#40598B#40598B

#40598B is a mid, moderate blue. Relative luminance 0.101; OKLCH L 46.8% C 0.087 H 263.2°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#40598B
RGB	rgb(64, 89, 139)
HSL	hsl(220, 37%, 40%)
HSV	hsv(220, 54%, 55%)
CMYK	cmyk(54%, 36%, 0%, 45.5%)
CIE-LAB	lab(38.02, 5.89, -30.67)
CIE-LCH	lch(38.02, 31.23, 280.88°)
OKLab	oklab(46.75% -0.0103 -0.0865)
OKLCH	oklch(46.75% 0.087 263.2)
XYZ	xyz(10.3454, 10.0981, 25.8251)
Luminance	0.1010 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40598B #8B7240

analogous

#407F8B #40598B #4D408B

triadic

#40598B #8B4059 #598B40

tetradic

#40598B #8B407F #8B7240 #408B4D

square

#40598B #8B407F #8B7240 #408B4D

split-complementary

#40598B #8B4D40 #7F8B40

monochromatic

#192337 #2D3E61 #40598B #5775B2 #8197C5

Accessibility & contrast

On white

6.95

#40598B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#40598B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #40598B

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40598B	#FFFFFF	#000000	##FFFFFF
##40598B	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#455D8D

Deuteranopia (green-blind)

#3D568A

Tritanopia (blue-blind)

#1A646B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #40598b;
/* rgb */ color: rgb(64, 89, 139);
/* oklch */ color: oklch(46.8% 0.087 263.2);

Tailwind

colors: {
  custom: {
    50: '#7a87ad',
    500: '#40598b',
    950: '#000000',
  },
}

SCSS

$custom: #40598b;
$custom-light: #7a87ad;
$custom-dark: #000000;

JSON

{
  "hex": "#40598b",
  "rgb": {
    "r": 64,
    "g": 89,
    "b": 139
  },
  "hsl": {
    "h": 220,
    "s": 36.946,
    "l": 39.804
  },
  "oklch": {
    "l": 0.46753,
    "c": 0.08714,
    "h": 263.2
  },
  "luminance": 0.10099
}

Semantic roles & 50–950 ramp

primary

#40598B

secondary

#AF9D78

accent

#A75BCD

background

#F7F8FA

surface

#EEEFF4

border

#C9CACE

text

#0A0B10

muted

#7C7C7F

Preview Lab

Preview with #40598B

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

Preview Lab → · Contrast checker → · Palette generator →