#40488D#40488D

#40488D is a dark, moderate blue. Relative luminance 0.076; OKLCH L 43.1% C 0.113 H 275.6°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#40488D
RGB	rgb(64, 72, 141)
HSL	hsl(234, 38%, 40%)
HSV	hsv(234, 55%, 55%)
CMYK	cmyk(54.6%, 48.9%, 0%, 44.7%)
CIE-LAB	lab(33.24, 17.66, -39.48)
CIE-LCH	lch(33.24, 43.25, 294.10°)
OKLab	oklab(43.12% 0.0111 -0.1125)
OKLCH	oklch(43.12% 0.113 275.6)
XYZ	xyz(9.2379, 7.6472, 26.1834)
Luminance	0.0765 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40488D #8D8540

analogous

#406F8D #40488D #5E408D

triadic

#40488D #8D4048 #488D40

tetradic

#40488D #8D406F #8D8540 #408D5E

square

#40488D #8D406F #8D8540 #408D5E

split-complementary

#40488D #8D5E40 #6F8D40

monochromatic

#1A1D39 #2D3363 #40488D #5761B3 #8189C6

Accessibility & contrast

On white

8.30

#40488D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#40488D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40488D

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40488D	#FFFFFF	#000000	##FFFFFF
##40488D	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#285190

Deuteranopia (green-blind)

#1F4B8C

Tritanopia (blue-blind)

#1C5763

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #40488d;
/* rgb */ color: rgb(64, 72, 141);
/* oklch */ color: oklch(43.1% 0.113 275.6);

Tailwind

colors: {
  custom: {
    50: '#7b7aaf',
    500: '#40488d',
    950: '#000000',
  },
}

SCSS

$custom: #40488d;
$custom-light: #7b7aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#40488d",
  "rgb": {
    "r": 64,
    "g": 72,
    "b": 141
  },
  "hsl": {
    "h": 233.766,
    "s": 37.561,
    "l": 40.196
  },
  "oklch": {
    "l": 0.43121,
    "c": 0.11301,
    "h": 275.6
  },
  "luminance": 0.07648
}

Semantic roles & 50–950 ramp

primary

#40488D

secondary

#B0AB78

accent

#C25ACE

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #40488D

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

Preview Lab → · Contrast checker → · Palette generator →