#40489B#40489B

#40489B is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.1% C 0.134 H 275.3°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#40489B
RGB	rgb(64, 72, 155)
HSL	hsl(235, 42%, 43%)
HSV	hsv(235, 59%, 61%)
CMYK	cmyk(58.7%, 53.5%, 0%, 39.2%)
CIE-LAB	lab(34.17, 22.48, -46.50)
CIE-LCH	lch(34.17, 51.65, 295.80°)
OKLab	oklab(44.13% 0.0125 -0.1331)
OKLCH	oklch(44.13% 0.134 275.3)
XYZ	xyz(10.3462, 8.0905, 32.0204)
Luminance	0.0809 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40489B #9B9340

analogous

#40769B #40489B #65409B

triadic

#40489B #9B4048 #489B40

tetradic

#40489B #9B4076 #9B9340 #409B65

square

#40489B #9B4076 #9B9340 #409B65

split-complementary

#40489B #9B6540 #769B40

monochromatic

#1C2044 #2E3470 #40489B #5C65BC #888ECE

Accessibility & contrast

On white

8.02

#40489B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#40489B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40489B

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40489B	#FFFFFF	#000000	##FFFFFF
##40489B	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18549E

Deuteranopia (green-blind)

#004D99

Tritanopia (blue-blind)

#035B6A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #40489b;
/* rgb */ color: rgb(64, 72, 155);
/* oklch */ color: oklch(44.1% 0.134 275.3);

Tailwind

colors: {
  custom: {
    50: '#7d7ab9',
    500: '#40489b',
    950: '#000000',
  },
}

SCSS

$custom: #40489b;
$custom-light: #7d7ab9;
$custom-dark: #000000;

JSON

{
  "hex": "#40489b",
  "rgb": {
    "r": 64,
    "g": 72,
    "b": 155
  },
  "hsl": {
    "h": 234.725,
    "s": 41.553,
    "l": 42.941
  },
  "oklch": {
    "l": 0.44125,
    "c": 0.13369,
    "h": 275.3
  },
  "luminance": 0.08091
}

Semantic roles & 50–950 ramp

primary

#40489B

secondary

#B8B37E

accent

#C756D1

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #40489B

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

Preview Lab → · Contrast checker → · Palette generator →