#4537AC#4537AC

#4537AC is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.9% C 0.178 H 281.2°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#4537AC
RGB	rgb(69, 55, 172)
HSL	hsl(247, 52%, 45%)
HSV	hsv(247, 68%, 67%)
CMYK	cmyk(59.9%, 68%, 0%, 32.5%)
CIE-LAB	lab(31.75, 39.78, -60.64)
CIE-LCH	lch(31.75, 72.52, 303.26°)
OKLab	oklab(42.86% 0.0347 -0.1746)
OKLCH	oklch(42.86% 0.178 281.2)
XYZ	xyz(11.2645, 6.9754, 39.7745)
Luminance	0.0698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.34

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4537AC #9EAC37

analogous

#3764AC #4537AC #7F37AC

triadic

#4537AC #AC4537 #37AC45

tetradic

#4537AC #AC3764 #9EAC37 #37AC7F

square

#4537AC #AC3764 #9EAC37 #37AC7F

split-complementary

#4537AC #AC7F37 #64AC37

monochromatic

#20194F #32287E #4537AC #6557C9 #8F85D8

Accessibility & contrast

On white

8.77

#4537AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#4537AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4537AC

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4537AC	#FFFFFF	#000000	##FFFFFF
##4537AC	1.00	8.77	2.40	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB0

Deuteranopia (green-blind)

#0046AA

Tritanopia (blue-blind)

#00556D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4537ac;
/* rgb */ color: rgb(69, 55, 172);
/* oklch */ color: oklch(42.9% 0.178 281.2);

Tailwind

colors: {
  custom: {
    50: '#846fc6',
    500: '#4537ac',
    950: '#000000',
  },
}

SCSS

$custom: #4537ac;
$custom-light: #846fc6;
$custom-dark: #000000;

JSON

{
  "hex": "#4537ac",
  "rgb": {
    "r": 69,
    "g": 55,
    "b": 172
  },
  "hsl": {
    "h": 247.179,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42858,
    "c": 0.17803,
    "h": 281.2
  },
  "luminance": 0.06976
}

Semantic roles & 50–950 ramp

primary

#4537AC

secondary

#BAC27D

accent

#DB4DCA

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4537AC

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

Preview Lab → · Contrast checker → · Palette generator →