#33478B#33478B

#33478B is a dark, moderate blue. Relative luminance 0.071; OKLCH L 41.9% C 0.115 H 268.7°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#33478B
RGB	rgb(51, 71, 139)
HSL	hsl(226, 46%, 37%)
HSV	hsv(226, 63%, 55%)
CMYK	cmyk(63.3%, 48.9%, 0%, 45.5%)
CIE-LAB	lab(31.97, 14.84, -40.32)
CIE-LCH	lch(31.97, 42.97, 290.20°)
OKLab	oklab(41.9% -0.0026 -0.1153)
OKLCH	oklch(41.9% 0.115 268.7)
XYZ	xyz(8.2771, 7.0737, 25.3503)
Luminance	0.0707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33478B #8B7733

analogous

#33738B #33478B #4B338B

triadic

#33478B #8B3347 #478B33

tetradic

#33478B #8B3373 #8B7733 #338B4B

square

#33478B #8B3373 #8B7733 #338B4B

split-complementary

#33478B #8B4B33 #738B33

monochromatic

#121931 #23305E #33478B #435EB8 #6E83CA

Accessibility & contrast

On white

8.70

#33478B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#33478B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #33478B

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33478B	#FFFFFF	#000000	##FFFFFF
##33478B	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254F8E

Deuteranopia (green-blind)

#15478A

Tritanopia (blue-blind)

#005662

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #33478b;
/* rgb */ color: rgb(51, 71, 139);
/* oklch */ color: oklch(41.9% 0.115 268.7);

Tailwind

colors: {
  custom: {
    50: '#7479ad',
    500: '#33478b',
    950: '#000000',
  },
}

SCSS

$custom: #33478b;
$custom-light: #7479ad;
$custom-dark: #000000;

JSON

{
  "hex": "#33478b",
  "rgb": {
    "r": 51,
    "g": 71,
    "b": 139
  },
  "hsl": {
    "h": 226.364,
    "s": 46.316,
    "l": 37.255
  },
  "oklch": {
    "l": 0.41896,
    "c": 0.11531,
    "h": 268.7
  },
  "luminance": 0.07074
}

Semantic roles & 50–950 ramp

primary

#33478B

secondary

#B2A168

accent

#B852D6

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #33478B

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

Preview Lab → · Contrast checker → · Palette generator →