#33378F#33378F

#33378F is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.9% C 0.143 H 275.6°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#33378F
RGB	rgb(51, 55, 143)
HSL	hsl(237, 47%, 38%)
HSV	hsv(237, 64%, 56%)
CMYK	cmyk(64.3%, 61.5%, 0%, 43.9%)
CIE-LAB	lab(27.90, 27.03, -49.38)
CIE-LCH	lch(27.90, 56.29, 298.69°)
OKLab	oklab(38.93% 0.0138 -0.1421)
OKLCH	oklch(38.93% 0.143 275.6)
XYZ	xyz(7.6877, 5.4187, 26.6221)
Luminance	0.0542 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33378F #8F8B33

analogous

#33658F #33378F #5D338F

triadic

#33378F #8F3337 #378F33

tetradic

#33378F #8F3365 #8F8B33 #338F5D

square

#33378F #8F3365 #8F8B33 #338F5D

split-complementary

#33378F #8F5D33 #658F33

monochromatic

#131435 #232662 #33378F #4348BC #7074CC

Accessibility & contrast

On white

10.08

#33378F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#33378F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #33378F

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33378F	#FFFFFF	#000000	##FFFFFF
##33378F	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004692

Deuteranopia (green-blind)

#003E8D

Tritanopia (blue-blind)

#004D5D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #33378f;
/* rgb */ color: rgb(51, 55, 143);
/* oklch */ color: oklch(38.9% 0.143 275.6);

Tailwind

colors: {
  custom: {
    50: '#756eb1',
    500: '#33378f',
    950: '#000000',
  },
}

SCSS

$custom: #33378f;
$custom-light: #756eb1;
$custom-dark: #000000;

JSON

{
  "hex": "#33378f",
  "rgb": {
    "r": 51,
    "g": 55,
    "b": 143
  },
  "hsl": {
    "h": 237.391,
    "s": 47.423,
    "l": 38.039
  },
  "oklch": {
    "l": 0.38928,
    "c": 0.14278,
    "h": 275.6
  },
  "luminance": 0.05419
}

Semantic roles & 50–950 ramp

primary

#33378F

secondary

#B4B16A

accent

#D151D7

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #33378F

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

Preview Lab → · Contrast checker → · Palette generator →