#40488F#40488F

#40488F is a dark, moderate blue. Relative luminance 0.077; OKLCH L 43.3% C 0.116 H 275.6°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#40488F
RGB	rgb(64, 72, 143)
HSL	hsl(234, 38%, 41%)
HSV	hsv(234, 55%, 56%)
CMYK	cmyk(55.2%, 49.7%, 0%, 43.9%)
CIE-LAB	lab(33.37, 18.34, -40.50)
CIE-LCH	lch(33.37, 44.46, 294.37°)
OKLab	oklab(43.26% 0.0113 -0.1155)
OKLCH	oklch(43.26% 0.116 275.6)
XYZ	xyz(9.3881, 7.7073, 26.9742)
Luminance	0.0771 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40488F #8F8740

analogous

#406F8F #40488F #5F408F

triadic

#40488F #8F4048 #488F40

tetradic

#40488F #8F406F #8F8740 #408F5F

square

#40488F #8F406F #8F8740 #408F5F

split-complementary

#40488F #8F5F40 #6F8F40

monochromatic

#1A1D3A #2D3365 #40488F #5861B4 #8289C7

Accessibility & contrast

On white

8.26

#40488F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#40488F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40488F

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40488F	#FFFFFF	#000000	##FFFFFF
##40488F	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#265292

Deuteranopia (green-blind)

#1D4B8D

Tritanopia (blue-blind)

#1A5864

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #40488f;
/* rgb */ color: rgb(64, 72, 143);
/* oklch */ color: oklch(43.3% 0.116 275.6);

Tailwind

colors: {
  custom: {
    50: '#7b7ab0',
    500: '#40488f',
    950: '#000000',
  },
}

SCSS

$custom: #40488f;
$custom-light: #7b7ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#40488f",
  "rgb": {
    "r": 64,
    "g": 72,
    "b": 143
  },
  "hsl": {
    "h": 233.924,
    "s": 38.164,
    "l": 40.588
  },
  "oklch": {
    "l": 0.4326,
    "c": 0.11601,
    "h": 275.6
  },
  "luminance": 0.07708
}

Semantic roles & 50–950 ramp

primary

#40488F

secondary

#B2AC79

accent

#C25ACE

background

#F7F7FA

surface

#EEEDF5

border

#C9C8CF

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #40488F

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

Preview Lab → · Contrast checker → · Palette generator →