#4537B8#4537B8

#4537B8 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 44.0% C 0.193 H 279.8°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#4537B8
RGB	rgb(69, 55, 184)
HSL	hsl(247, 54%, 47%)
HSV	hsv(247, 70%, 72%)
CMYK	cmyk(62.5%, 70.1%, 0%, 27.8%)
CIE-LAB	lab(32.83, 43.60, -66.02)
CIE-LCH	lch(32.83, 79.12, 303.44°)
OKLab	oklab(43.96% 0.0328 -0.1904)
OKLCH	oklch(43.96% 0.193 279.8)
XYZ	xyz(12.4694, 7.4573, 46.1204)
Luminance	0.0746 (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

#4537B8 #AAB837

analogous

#3769B8 #4537B8 #8637B8

triadic

#4537B8 #B84537 #37B845

tetradic

#4537B8 #B83769 #AAB837 #37B886

square

#4537B8 #B83769 #AAB837 #37B886

split-complementary

#4537B8 #B88637 #69B837

monochromatic

#221B5A #332989 #4537B8 #6A5DCF #958DDD

Accessibility & contrast

On white

8.43

#4537B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#4537B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4537B8

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4537B8	#FFFFFF	#000000	##FFFFFF
##4537B8	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BC

Deuteranopia (green-blind)

#0048B6

Tritanopia (blue-blind)

#005A73

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #4537b8;
/* rgb */ color: rgb(69, 55, 184);
/* oklch */ color: oklch(44.0% 0.193 279.8);

Tailwind

colors: {
  custom: {
    50: '#866fce',
    500: '#4537b8',
    950: '#000000',
  },
}

SCSS

$custom: #4537b8;
$custom-light: #866fce;
$custom-dark: #000000;

JSON

{
  "hex": "#4537b8",
  "rgb": {
    "r": 69,
    "g": 55,
    "b": 184
  },
  "hsl": {
    "h": 246.512,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.4396,
    "c": 0.19319,
    "h": 279.8
  },
  "luminance": 0.07458
}

Semantic roles & 50–950 ramp

primary

#4537B8

secondary

#C0C784

accent

#DD4ACD

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4537B8

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

Preview Lab → · Contrast checker → · Palette generator →