#3933BF#3933BF

#3933BF is a dark, highly saturated blue. Relative luminance 0.070; OKLCH L 43.2% C 0.209 H 275.1°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#3933BF
RGB	rgb(57, 51, 191)
HSL	hsl(243, 58%, 47%)
HSV	hsv(243, 73%, 75%)
CMYK	cmyk(70.2%, 73.3%, 0%, 25.1%)
CIE-LAB	lab(31.80, 46.67, -71.87)
CIE-LCH	lch(31.80, 85.69, 303.00°)
OKLab	oklab(43.21% 0.0185 -0.2078)
OKLCH	oklch(43.21% 0.209 275.1)
XYZ	xyz(12.2720, 6.9979, 49.9841)
Luminance	0.0700 (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

#3933BF #B9BF33

analogous

#3373BF #3933BF #7F33BF

triadic

#3933BF #BF3933 #33BF39

tetradic

#3933BF #BF3373 #B9BF33 #33BF7F

square

#3933BF #BF3373 #B9BF33 #33BF7F

split-complementary

#3933BF #BF7F33 #73BF33

monochromatic

#1C195E #2B268F #3933BF #615CD3 #908CE0

Accessibility & contrast

On white

8.75

#3933BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#3933BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3933BF

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3933BF	#FFFFFF	#000000	##FFFFFF
##3933BF	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051C3

Deuteranopia (green-blind)

#0044BC

Tritanopia (blue-blind)

#005B76

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3933bf;
/* rgb */ color: rgb(57, 51, 191);
/* oklch */ color: oklch(43.2% 0.209 275.1);

Tailwind

colors: {
  custom: {
    50: '#836dd4',
    500: '#3933bf',
    950: '#000000',
  },
}

SCSS

$custom: #3933bf;
$custom-light: #836dd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3933bf",
  "rgb": {
    "r": 57,
    "g": 51,
    "b": 191
  },
  "hsl": {
    "h": 242.571,
    "s": 57.851,
    "l": 47.451
  },
  "oklch": {
    "l": 0.43206,
    "c": 0.2086,
    "h": 275.1
  },
  "luminance": 0.06999
}

Semantic roles & 50–950 ramp

primary

#3933BF

secondary

#C8CB83

accent

#E147DA

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3933BF

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

Preview Lab → · Contrast checker → · Palette generator →