#3933B9#3933B9

#3933B9 is a dark, highly saturated blue. Relative luminance 0.067; OKLCH L 42.6% C 0.201 H 275.6°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#3933B9
RGB	rgb(57, 51, 185)
HSL	hsl(243, 57%, 46%)
HSV	hsv(243, 72%, 73%)
CMYK	cmyk(69.2%, 72.4%, 0%, 27.5%)
CIE-LAB	lab(31.21, 44.72, -69.31)
CIE-LCH	lch(31.21, 82.48, 302.83°)
OKLab	oklab(42.6% 0.0196 -0.2003)
OKLCH	oklch(42.6% 0.201 275.6)
XYZ	xyz(11.6252, 6.7392, 46.5777)
Luminance	0.0674 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 3.91

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3933B9 #B3B933

analogous

#3370B9 #3933B9 #7C33B9

triadic

#3933B9 #B93933 #33B939

tetradic

#3933B9 #B93370 #B3B933 #33B97C

square

#3933B9 #B93370 #B3B933 #33B97C

split-complementary

#3933B9 #B97C33 #70B933

monochromatic

#1B1959 #2A2689 #3933B9 #5E58D1 #8C88DE

Accessibility & contrast

On white

8.94

#3933B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#3933B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3933B9

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3933B9	#FFFFFF	#000000	##FFFFFF
##3933B9	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBD

Deuteranopia (green-blind)

#0043B7

Tritanopia (blue-blind)

#005973

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3933b9;
/* rgb */ color: rgb(57, 51, 185);
/* oklch */ color: oklch(42.6% 0.201 275.6);

Tailwind

colors: {
  custom: {
    50: '#816ccf',
    500: '#3933b9',
    950: '#000000',
  },
}

SCSS

$custom: #3933b9;
$custom-light: #816ccf;
$custom-dark: #000000;

JSON

{
  "hex": "#3933b9",
  "rgb": {
    "r": 57,
    "g": 51,
    "b": 185
  },
  "hsl": {
    "h": 242.687,
    "s": 56.78,
    "l": 46.275
  },
  "oklch": {
    "l": 0.42603,
    "c": 0.20127,
    "h": 275.6
  },
  "luminance": 0.0674
}

Semantic roles & 50–950 ramp

primary

#3933B9

secondary

#C5C880

accent

#E048D9

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3933B9

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

Preview Lab → · Contrast checker → · Palette generator →