#3538B3#3538B3

#3538B3 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.5% C 0.189 H 273.8°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#3538B3
RGB	rgb(53, 56, 179)
HSL	hsl(239, 54%, 45%)
HSV	hsv(239, 70%, 70%)
CMYK	cmyk(70.4%, 68.7%, 0%, 29.8%)
CIE-LAB	lab(31.44, 39.31, -65.38)
CIE-LCH	lch(31.44, 76.29, 301.02°)
OKLab	oklab(42.53% 0.0126 -0.1889)
OKLCH	oklch(42.53% 0.189 273.8)
XYZ	xyz(11.0163, 6.8388, 43.3785)
Luminance	0.0684 (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

#3538B3 #B3B035

analogous

#3577B3 #3538B3 #7135B3

triadic

#3538B3 #B33538 #38B335

tetradic

#3538B3 #B33577 #B3B035 #35B371

square

#3538B3 #B33577 #B3B035 #35B371

split-complementary

#3538B3 #B37135 #77B335

monochromatic

#191A55 #272984 #3538B3 #585BCD #8789DB

Accessibility & contrast

On white

8.87

#3538B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#3538B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3538B3

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3538B3	#FFFFFF	#000000	##FFFFFF
##3538B3	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B7

Deuteranopia (green-blind)

#0044B1

Tritanopia (blue-blind)

#005971

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3538b3;
/* rgb */ color: rgb(53, 56, 179);
/* oklch */ color: oklch(42.5% 0.189 273.8);

Tailwind

colors: {
  custom: {
    50: '#7e6fcb',
    500: '#3538b3',
    950: '#000000',
  },
}

SCSS

$custom: #3538b3;
$custom-light: #7e6fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3538b3",
  "rgb": {
    "r": 53,
    "g": 56,
    "b": 179
  },
  "hsl": {
    "h": 238.571,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.42525,
    "c": 0.18936,
    "h": 273.8
  },
  "luminance": 0.0684
}

Semantic roles & 50–950 ramp

primary

#3538B3

secondary

#C5C47F

accent

#DA4ADE

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3538B3

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

Preview Lab → · Contrast checker → · Palette generator →