#40458F#40458F

#40458F is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.6% C 0.120 H 277.1°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#40458F
RGB	rgb(64, 69, 143)
HSL	hsl(236, 38%, 41%)
HSV	hsv(236, 55%, 56%)
CMYK	cmyk(55.2%, 51.7%, 0%, 43.9%)
CIE-LAB	lab(32.54, 20.32, -41.82)
CIE-LCH	lch(32.54, 46.49, 295.92°)
OKLab	oklab(42.64% 0.0149 -0.1194)
OKLCH	oklch(42.64% 0.12 277.1)
XYZ	xyz(9.1988, 7.3288, 26.9111)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40458F #8F8A40

analogous

#406C8F #40458F #63408F

triadic

#40458F #8F4045 #458F40

tetradic

#40458F #8F406C #8F8A40 #408F63

square

#40458F #8F406C #8F8A40 #408F63

split-complementary

#40458F #8F6340 #6C8F40

monochromatic

#1A1C3A #2D3165 #40458F #585EB4 #8287C7

Accessibility & contrast

On white

8.52

#40458F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#40458F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40458F

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40458F	#FFFFFF	#000000	##FFFFFF
##40458F	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#205092

Deuteranopia (green-blind)

#15498D

Tritanopia (blue-blind)

#1B5563

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #40458f;
/* rgb */ color: rgb(64, 69, 143);
/* oklch */ color: oklch(42.6% 0.120 277.1);

Tailwind

colors: {
  custom: {
    50: '#7b78b0',
    500: '#40458f',
    950: '#000000',
  },
}

SCSS

$custom: #40458f;
$custom-light: #7b78b0;
$custom-dark: #000000;

JSON

{
  "hex": "#40458f",
  "rgb": {
    "r": 64,
    "g": 69,
    "b": 143
  },
  "hsl": {
    "h": 236.203,
    "s": 38.164,
    "l": 40.588
  },
  "oklch": {
    "l": 0.4264,
    "c": 0.12029,
    "h": 277.1
  },
  "luminance": 0.07329
}

Semantic roles & 50–950 ramp

primary

#40458F

secondary

#B2AE79

accent

#C75ACE

background

#F7F7FA

surface

#EEEDF5

border

#C9C8CF

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #40458F

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

Preview Lab → · Contrast checker → · Palette generator →