#3539B4#3539B4

#3539B4 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.8% C 0.190 H 273.6°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#3539B4
RGB	rgb(53, 57, 180)
HSL	hsl(238, 55%, 46%)
HSV	hsv(238, 71%, 71%)
CMYK	cmyk(70.6%, 68.3%, 0%, 29.4%)
CIE-LAB	lab(31.76, 39.05, -65.45)
CIE-LCH	lch(31.76, 76.21, 300.82°)
OKLab	oklab(42.78% 0.0118 -0.1892)
OKLCH	oklch(42.78% 0.19 273.6)
XYZ	xyz(11.1668, 6.9773, 43.9294)
Luminance	0.0698 (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

#3539B4 #B4B035

analogous

#3578B4 #3539B4 #7035B4

triadic

#3539B4 #B43539 #39B435

tetradic

#3539B4 #B43578 #B4B035 #35B470

square

#3539B4 #B43578 #B4B035 #35B470

split-complementary

#3539B4 #B47035 #78B435

monochromatic

#191B55 #272A85 #3539B4 #585CCE #888ADC

Accessibility & contrast

On white

8.77

#3539B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#3539B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3539B4

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3539B4	#FFFFFF	#000000	##FFFFFF
##3539B4	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)

#0051B8

Deuteranopia (green-blind)

#0045B2

Tritanopia (blue-blind)

#005A72

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3539b4;
/* rgb */ color: rgb(53, 57, 180);
/* oklch */ color: oklch(42.8% 0.190 273.6);

Tailwind

colors: {
  custom: {
    50: '#7e70cc',
    500: '#3539b4',
    950: '#000000',
  },
}

SCSS

$custom: #3539b4;
$custom-light: #7e70cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3539b4",
  "rgb": {
    "r": 53,
    "g": 57,
    "b": 180
  },
  "hsl": {
    "h": 238.11,
    "s": 54.506,
    "l": 45.686
  },
  "oklch": {
    "l": 0.42784,
    "c": 0.18952,
    "h": 273.6
  },
  "luminance": 0.06978
}

Semantic roles & 50–950 ramp

primary

#3539B4

secondary

#C6C47F

accent

#D94ADE

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3539B4

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

Preview Lab → · Contrast checker → · Palette generator →