#40458D#40458D

#40458D is a dark, moderate blue. Relative luminance 0.073; OKLCH L 42.5% C 0.117 H 277.2°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#40458D
RGB	rgb(64, 69, 141)
HSL	hsl(236, 38%, 40%)
HSV	hsv(236, 55%, 55%)
CMYK	cmyk(54.6%, 51.1%, 0%, 44.7%)
CIE-LAB	lab(32.41, 19.64, -40.80)
CIE-LCH	lch(32.41, 45.28, 295.70°)
OKLab	oklab(42.5% 0.0147 -0.1164)
OKLCH	oklch(42.5% 0.117 277.2)
XYZ	xyz(9.0487, 7.2687, 26.1203)
Luminance	0.0727 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40458D #8D8840

analogous

#406B8D #40458D #61408D

triadic

#40458D #8D4045 #458D40

tetradic

#40458D #8D406B #8D8840 #408D61

square

#40458D #8D406B #8D8840 #408D61

split-complementary

#40458D #8D6140 #6B8D40

monochromatic

#1A1C39 #2D3063 #40458D #575DB3 #8186C6

Accessibility & contrast

On white

8.56

#40458D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#40458D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40458D

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40458D	#FFFFFF	#000000	##FFFFFF
##40458D	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224F90

Deuteranopia (green-blind)

#18498B

Tritanopia (blue-blind)

#1D5562

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #40458d;
/* rgb */ color: rgb(64, 69, 141);
/* oklch */ color: oklch(42.5% 0.117 277.2);

Tailwind

colors: {
  custom: {
    50: '#7b78af',
    500: '#40458d',
    950: '#000000',
  },
}

SCSS

$custom: #40458d;
$custom-light: #7b78af;
$custom-dark: #000000;

JSON

{
  "hex": "#40458d",
  "rgb": {
    "r": 64,
    "g": 69,
    "b": 141
  },
  "hsl": {
    "h": 236.104,
    "s": 37.561,
    "l": 40.196
  },
  "oklch": {
    "l": 0.42497,
    "c": 0.11731,
    "h": 277.2
  },
  "luminance": 0.07269
}

Semantic roles & 50–950 ramp

primary

#40458D

secondary

#B0AD78

accent

#C65ACE

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #40458D

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

Preview Lab → · Contrast checker → · Palette generator →