#33377B#33377B

#33377B is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.3% C 0.114 H 276.8°. Best body text is #FFFFFF at 10.64:1 contrast (WCAG AA passes).

Color values

HEX	#33377B
RGB	rgb(51, 55, 123)
HSL	hsl(237, 41%, 34%)
HSV	hsv(237, 59%, 48%)
CMYK	cmyk(58.5%, 55.3%, 0%, 51.8%)
CIE-LAB	lab(26.35, 19.87, -39.41)
CIE-LCH	lch(26.35, 44.14, 296.75°)
OKLab	oklab(37.29% 0.0135 -0.1128)
OKLCH	oklch(37.29% 0.114 276.8)
XYZ	xyz(6.3054, 4.8658, 19.3420)
Luminance	0.0487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33377B #7B7733

analogous

#335B7B #33377B #53337B

triadic

#33377B #7B3337 #377B33

tetradic

#33377B #7B335B #7B7733 #337B53

square

#33377B #7B335B #7B7733 #337B53

split-complementary

#33377B #7B5333 #5B7B33

monochromatic

#0F1024 #212450 #33377B #454AA6 #686DC0

Accessibility & contrast

On white

10.64

#33377B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#33377B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #33377B

10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33377B	#FFFFFF	#000000	##FFFFFF
##33377B	1.00	10.64	1.97	10.64
#FFFFFF	10.64	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F417D

Deuteranopia (green-blind)

#003B7A

Tritanopia (blue-blind)

#0B4753

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #33377b;
/* rgb */ color: rgb(51, 55, 123);
/* oklch */ color: oklch(37.3% 0.114 276.8);

Tailwind

colors: {
  custom: {
    50: '#726da2',
    500: '#33377b',
    950: '#000000',
  },
}

SCSS

$custom: #33377b;
$custom-light: #726da2;
$custom-dark: #000000;

JSON

{
  "hex": "#33377b",
  "rgb": {
    "r": 51,
    "g": 55,
    "b": 123
  },
  "hsl": {
    "h": 236.667,
    "s": 41.379,
    "l": 34.118
  },
  "oklch": {
    "l": 0.37288,
    "c": 0.1136,
    "h": 276.8
  },
  "luminance": 0.04866
}

Semantic roles & 50–950 ramp

primary

#33377B

secondary

#A8A462

accent

#CA57D1

background

#F7F6FA

surface

#EDEBF3

border

#C8C6CD

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #33377B

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

Preview Lab → · Contrast checker → · Palette generator →