#33308B#33308B

#33308B is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.3% C 0.146 H 278.0°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#33308B
RGB	rgb(51, 48, 139)
HSL	hsl(242, 49%, 37%)
HSV	hsv(242, 65%, 55%)
CMYK	cmyk(63.3%, 65.5%, 0%, 45.5%)
CIE-LAB	lab(25.81, 30.19, -50.31)
CIE-LCH	lch(25.81, 58.67, 300.97°)
OKLab	oklab(37.29% 0.0205 -0.1449)
OKLCH	oklch(37.29% 0.146 278)
XYZ	xyz(7.0809, 4.6812, 24.9515)
Luminance	0.0468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33308B #888B30

analogous

#305B8B #33308B #61308B

triadic

#33308B #8B3330 #308B33

tetradic

#33308B #8B305B #888B30 #308B61

square

#33308B #8B305B #888B30 #308B61

split-complementary

#33308B #8B6130 #5B8B30

monochromatic

#121130 #22205E #33308B #4440B8 #6D6ACC

Accessibility & contrast

On white

10.84

#33308B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#33308B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #33308B

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33308B	#FFFFFF	#000000	##FFFFFF
##33308B	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418E

Deuteranopia (green-blind)

#003989

Tritanopia (blue-blind)

#004759

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #33308b;
/* rgb */ color: rgb(51, 48, 139);
/* oklch */ color: oklch(37.3% 0.146 278.0);

Tailwind

colors: {
  custom: {
    50: '#7569ae',
    500: '#33308b',
    950: '#000000',
  },
}

SCSS

$custom: #33308b;
$custom-light: #7569ae;
$custom-dark: #000000;

JSON

{
  "hex": "#33308b",
  "rgb": {
    "r": 51,
    "g": 48,
    "b": 139
  },
  "hsl": {
    "h": 241.978,
    "s": 48.663,
    "l": 36.667
  },
  "oklch": {
    "l": 0.37289,
    "c": 0.14632,
    "h": 278
  },
  "luminance": 0.04682
}

Semantic roles & 50–950 ramp

primary

#33308B

secondary

#B0B364

accent

#D850D4

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #33308B

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

Preview Lab → · Contrast checker → · Palette generator →