#3933B5#3933B5

#3933B5 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 42.2% C 0.196 H 275.9°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#3933B5
RGB	rgb(57, 51, 181)
HSL	hsl(243, 56%, 45%)
HSV	hsv(243, 72%, 71%)
CMYK	cmyk(68.5%, 71.8%, 0%, 29%)
CIE-LAB	lab(30.81, 43.41, -67.58)
CIE-LCH	lch(30.81, 80.32, 302.72°)
OKLab	oklab(42.21% 0.0203 -0.1953)
OKLCH	oklch(42.21% 0.196 275.9)
XYZ	xyz(11.2089, 6.5727, 44.3851)
Luminance	0.0657 (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

#3933B5 #AFB533

analogous

#336EB5 #3933B5 #7A33B5

triadic

#3933B5 #B53933 #33B539

tetradic

#3933B5 #B5336E #AFB533 #33B57A

square

#3933B5 #B5336E #AFB533 #33B57A

split-complementary

#3933B5 #B57A33 #6EB533

monochromatic

#1B1856 #2A2685 #3933B5 #5B56CF #8A86DD

Accessibility & contrast

On white

9.07

#3933B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#3933B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3933B5

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3933B5	#FFFFFF	#000000	##FFFFFF
##3933B5	1.00	9.07	2.31	9.07
#FFFFFF	9.07	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB9

Deuteranopia (green-blind)

#0043B3

Tritanopia (blue-blind)

#005770

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3933b5;
/* rgb */ color: rgb(57, 51, 181);
/* oklch */ color: oklch(42.2% 0.196 275.9);

Tailwind

colors: {
  custom: {
    50: '#816ccc',
    500: '#3933b5',
    950: '#000000',
  },
}

SCSS

$custom: #3933b5;
$custom-light: #816ccc;
$custom-dark: #000000;

JSON

{
  "hex": "#3933b5",
  "rgb": {
    "r": 57,
    "g": 51,
    "b": 181
  },
  "hsl": {
    "h": 242.769,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.42205,
    "c": 0.19632,
    "h": 275.9
  },
  "luminance": 0.06574
}

Semantic roles & 50–950 ramp

primary

#3933B5

secondary

#C3C67D

accent

#DF48D8

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3933B5

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

Preview Lab → · Contrast checker → · Palette generator →