#3537A3#3537A3

#3537A3 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.9% C 0.170 H 275.1°. Best body text is #FFFFFF at 9.43:1 contrast (WCAG AA passes).

Color values

HEX	#3537A3
RGB	rgb(53, 55, 163)
HSL	hsl(239, 51%, 42%)
HSV	hsv(239, 67%, 64%)
CMYK	cmyk(67.5%, 66.3%, 0%, 36.1%)
CIE-LAB	lab(29.75, 34.40, -58.56)
CIE-LCH	lch(29.75, 67.92, 300.43°)
OKLab	oklab(40.85% 0.015 -0.169)
OKLCH	oklch(40.85% 0.17 275.1)
XYZ	xyz(9.4431, 6.1328, 35.3293)
Luminance	0.0613 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.62

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3537A3 #A3A135

analogous

#356EA3 #3537A3 #6A35A3

triadic

#3537A3 #A33537 #37A335

tetradic

#3537A3 #A3356E #A3A135 #35A36A

square

#3537A3 #A3356E #A3A135 #35A36A

split-complementary

#3537A3 #A36A35 #6EA335

monochromatic

#171847 #262775 #3537A3 #4F51C6 #7E7FD5

Accessibility & contrast

On white

9.43

#3537A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#3537A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3537A3

9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3537A3	#FFFFFF	#000000	##FFFFFF
##3537A3	1.00	9.43	2.23	9.43
#FFFFFF	9.43	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA6

Deuteranopia (green-blind)

#0041A1

Tritanopia (blue-blind)

#005368

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3537a3;
/* rgb */ color: rgb(53, 55, 163);
/* oklch */ color: oklch(40.9% 0.170 275.1);

Tailwind

colors: {
  custom: {
    50: '#7b6ebf',
    500: '#3537a3',
    950: '#000000',
  },
}

SCSS

$custom: #3537a3;
$custom-light: #7b6ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#3537a3",
  "rgb": {
    "r": 53,
    "g": 55,
    "b": 163
  },
  "hsl": {
    "h": 238.909,
    "s": 50.926,
    "l": 42.353
  },
  "oklch": {
    "l": 0.40851,
    "c": 0.16967,
    "h": 275.1
  },
  "luminance": 0.06134
}

Semantic roles & 50–950 ramp

primary

#3537A3

secondary

#BEBD76

accent

#D84DDA

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #3537A3

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

Preview Lab → · Contrast checker → · Palette generator →