#4537B7#4537B7

#4537B7 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.9% C 0.192 H 279.9°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#4537B7
RGB	rgb(69, 55, 183)
HSL	hsl(247, 54%, 47%)
HSV	hsv(247, 70%, 72%)
CMYK	cmyk(62.3%, 69.9%, 0%, 28.2%)
CIE-LAB	lab(32.73, 43.29, -65.58)
CIE-LCH	lch(32.73, 78.57, 303.43°)
OKLab	oklab(43.87% 0.0329 -0.1891)
OKLCH	oklch(43.87% 0.192 279.9)
XYZ	xyz(12.3650, 7.4156, 45.5703)
Luminance	0.0742 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.08

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4537B7 #A9B737

analogous

#3769B7 #4537B7 #8537B7

triadic

#4537B7 #B74537 #37B745

tetradic

#4537B7 #B73769 #A9B737 #37B785

square

#4537B7 #B73769 #A9B737 #37B785

split-complementary

#4537B7 #B78537 #69B737

monochromatic

#221B59 #332988 #4537B7 #695DCE #958CDC

Accessibility & contrast

On white

8.46

#4537B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#4537B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4537B7

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4537B7	#FFFFFF	#000000	##FFFFFF
##4537B7	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BB

Deuteranopia (green-blind)

#0048B5

Tritanopia (blue-blind)

#005973

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #4537b7;
/* rgb */ color: rgb(69, 55, 183);
/* oklch */ color: oklch(43.9% 0.192 279.9);

Tailwind

colors: {
  custom: {
    50: '#866fce',
    500: '#4537b7',
    950: '#000000',
  },
}

SCSS

$custom: #4537b7;
$custom-light: #866fce;
$custom-dark: #000000;

JSON

{
  "hex": "#4537b7",
  "rgb": {
    "r": 69,
    "g": 55,
    "b": 183
  },
  "hsl": {
    "h": 246.563,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.43867,
    "c": 0.19194,
    "h": 279.9
  },
  "luminance": 0.07416
}

Semantic roles & 50–950 ramp

primary

#4537B7

secondary

#BFC783

accent

#DD4BCD

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4537B7

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

Preview Lab → · Contrast checker → · Palette generator →