#33548B#33548B

#33548B is a dark, moderate blue. Relative luminance 0.089; OKLCH L 44.8% C 0.099 H 260.1°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#33548B
RGB	rgb(51, 84, 139)
HSL	hsl(218, 46%, 37%)
HSV	hsv(218, 63%, 55%)
CMYK	cmyk(63.3%, 39.6%, 0%, 45.5%)
CIE-LAB	lab(35.81, 6.22, -34.21)
CIE-LCH	lch(35.81, 34.77, 280.31°)
OKLab	oklab(44.84% -0.017 -0.0972)
OKLCH	oklch(44.84% 0.099 260.1)
XYZ	xyz(9.1941, 8.9077, 25.6559)
Luminance	0.0891 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33548B #8B6A33

analogous

#33808B #33548B #3E338B

triadic

#33548B #8B3354 #548B33

tetradic

#33548B #8B3380 #8B6A33 #338B3E

square

#33548B #8B3380 #8B6A33 #338B3E

split-complementary

#33548B #8B3E33 #808B33

monochromatic

#121E31 #23395E #33548B #436FB8 #6E91CA

Accessibility & contrast

On white

7.55

#33548B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#33548B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #33548B

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33548B	#FFFFFF	#000000	##FFFFFF
##33548B	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C598D

Deuteranopia (green-blind)

#30508A

Tritanopia (blue-blind)

#006069

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #33548b;
/* rgb */ color: rgb(51, 84, 139);
/* oklch */ color: oklch(44.8% 0.099 260.1);

Tailwind

colors: {
  custom: {
    50: '#7383ad',
    500: '#33548b',
    950: '#000000',
  },
}

SCSS

$custom: #33548b;
$custom-light: #7383ad;
$custom-dark: #000000;

JSON

{
  "hex": "#33548b",
  "rgb": {
    "r": 51,
    "g": 84,
    "b": 139
  },
  "hsl": {
    "h": 217.5,
    "s": 46.316,
    "l": 37.255
  },
  "oklch": {
    "l": 0.44844,
    "c": 0.09863,
    "h": 260.1
  },
  "luminance": 0.08909
}

Semantic roles & 50–950 ramp

primary

#33548B

secondary

#B29668

accent

#A452D6

background

#F7F8FA

surface

#EDEFF4

border

#C8CACE

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #33548B

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

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