#33378C#33378C

#33378C is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.7% C 0.139 H 275.8°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#33378C
RGB	rgb(51, 55, 140)
HSL	hsl(237, 47%, 37%)
HSV	hsv(237, 64%, 55%)
CMYK	cmyk(63.6%, 60.7%, 0%, 45.1%)
CIE-LAB	lab(27.65, 25.95, -47.92)
CIE-LCH	lch(27.65, 54.50, 298.44°)
OKLab	oklab(38.67% 0.0139 -0.1378)
OKLCH	oklch(38.67% 0.139 275.8)
XYZ	xyz(7.4635, 5.3290, 25.4412)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33378C #8C8833

analogous

#33648C #33378C #5B338C

triadic

#33378C #8C3337 #378C33

tetradic

#33378C #8C3364 #8C8833 #338C5B

square

#33378C #8C3364 #8C8833 #338C5B

split-complementary

#33378C #8C5B33 #648C33

monochromatic

#121432 #23255F #33378C #4349B9 #6F73CB

Accessibility & contrast

On white

10.16

#33378C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#33378C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #33378C

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33378C	#FFFFFF	#000000	##FFFFFF
##33378C	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458F

Deuteranopia (green-blind)

#003D8A

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #33378c;
/* rgb */ color: rgb(51, 55, 140);
/* oklch */ color: oklch(38.7% 0.139 275.8);

Tailwind

colors: {
  custom: {
    50: '#756eae',
    500: '#33378c',
    950: '#000000',
  },
}

SCSS

$custom: #33378c;
$custom-light: #756eae;
$custom-dark: #000000;

JSON

{
  "hex": "#33378c",
  "rgb": {
    "r": 51,
    "g": 55,
    "b": 140
  },
  "hsl": {
    "h": 237.303,
    "s": 46.597,
    "l": 37.451
  },
  "oklch": {
    "l": 0.38672,
    "c": 0.13852,
    "h": 275.8
  },
  "luminance": 0.0533
}

Semantic roles & 50–950 ramp

primary

#33378C

secondary

#B2AF68

accent

#D052D6

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #33378C

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

Preview Lab → · Contrast checker → · Palette generator →