#4540AA#4540AA

#4540AA is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.2% C 0.164 H 279.4°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#4540AA
RGB	rgb(69, 64, 170)
HSL	hsl(243, 45%, 46%)
HSV	hsv(243, 62%, 67%)
CMYK	cmyk(59.4%, 62.4%, 0%, 33.3%)
CIE-LAB	lab(33.63, 33.65, -56.37)
CIE-LCH	lch(33.63, 65.65, 300.84°)
OKLab	oklab(44.17% 0.0268 -0.1621)
OKLCH	oklch(44.17% 0.164 279.4)
XYZ	xyz(11.5410, 7.8335, 38.9263)
Luminance	0.0783 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4540AA #A5AA40

analogous

#4070AA #4540AA #7A40AA

triadic

#4540AA #AA4540 #40AA45

tetradic

#4540AA #AA4070 #A5AA40 #40AA7A

square

#4540AA #AA4070 #A5AA40 #40AA7A

split-complementary

#4540AA #AA7A40 #70AA40

monochromatic

#211F51 #332F7E #4540AA #6863C4 #938FD5

Accessibility & contrast

On white

8.18

#4540AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#4540AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4540AA

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4540AA	#FFFFFF	#000000	##FFFFFF
##4540AA	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AD

Deuteranopia (green-blind)

#004BA8

Tritanopia (blue-blind)

#005A6F

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4540aa;
/* rgb */ color: rgb(69, 64, 170);
/* oklch */ color: oklch(44.2% 0.164 279.4);

Tailwind

colors: {
  custom: {
    50: '#8375c4',
    500: '#4540aa',
    950: '#000000',
  },
}

SCSS

$custom: #4540aa;
$custom-light: #8375c4;
$custom-dark: #000000;

JSON

{
  "hex": "#4540aa",
  "rgb": {
    "r": 69,
    "g": 64,
    "b": 170
  },
  "hsl": {
    "h": 242.83,
    "s": 45.299,
    "l": 45.882
  },
  "oklch": {
    "l": 0.44174,
    "c": 0.16427,
    "h": 279.4
  },
  "luminance": 0.07834
}

Semantic roles & 50–950 ramp

primary

#4540AA

secondary

#BDC086

accent

#D553CF

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4540AA

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

Preview Lab → · Contrast checker → · Palette generator →