#3933B4#3933B4

#3933B4 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 42.1% C 0.195 H 276.0°. Best body text is #FFFFFF at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#3933B4
RGB	rgb(57, 51, 180)
HSL	hsl(243, 56%, 45%)
HSV	hsv(243, 72%, 71%)
CMYK	cmyk(68.3%, 71.7%, 0%, 29.4%)
CIE-LAB	lab(30.72, 43.08, -67.15)
CIE-LCH	lch(30.72, 79.78, 302.69°)
OKLab	oklab(42.11% 0.0205 -0.194)
OKLCH	oklch(42.11% 0.195 276)
XYZ	xyz(11.1067, 6.5318, 43.8466)
Luminance	0.0653 (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

#3933B4 #AEB433

analogous

#336DB4 #3933B4 #7A33B4

triadic

#3933B4 #B43933 #33B439

tetradic

#3933B4 #B4336D #AEB433 #33B47A

square

#3933B4 #B4336D #AEB433 #33B47A

split-complementary

#3933B4 #B47A33 #6DB433

monochromatic

#1B1855 #2A2584 #3933B4 #5B55CF #8985DC

Accessibility & contrast

On white

9.10

#3933B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#3933B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3933B4

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3933B4	#FFFFFF	#000000	##FFFFFF
##3933B4	1.00	9.10	2.31	9.10
#FFFFFF	9.10	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB8

Deuteranopia (green-blind)

#0043B2

Tritanopia (blue-blind)

#005770

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3933b4;
/* rgb */ color: rgb(57, 51, 180);
/* oklch */ color: oklch(42.1% 0.195 276.0);

Tailwind

colors: {
  custom: {
    50: '#806ccc',
    500: '#3933b4',
    950: '#000000',
  },
}

SCSS

$custom: #3933b4;
$custom-light: #806ccc;
$custom-dark: #000000;

JSON

{
  "hex": "#3933b4",
  "rgb": {
    "r": 57,
    "g": 51,
    "b": 180
  },
  "hsl": {
    "h": 242.791,
    "s": 55.844,
    "l": 45.294
  },
  "oklch": {
    "l": 0.42106,
    "c": 0.19509,
    "h": 276
  },
  "luminance": 0.06533
}

Semantic roles & 50–950 ramp

primary

#3933B4

secondary

#C3C67D

accent

#DF49D8

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #3933B4

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

Preview Lab → · Contrast checker → · Palette generator →