#333580#333580

#333580 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.3% C 0.124 H 277.4°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).

Color values

HEX	#333580
RGB	rgb(51, 53, 128)
HSL	hsl(238, 43%, 35%)
HSV	hsv(238, 60%, 50%)
CMYK	cmyk(60.2%, 58.6%, 0%, 49.8%)
CIE-LAB	lab(26.18, 23.00, -42.83)
CIE-LCH	lch(26.18, 48.62, 298.24°)
OKLab	oklab(37.28% 0.0159 -0.1229)
OKLCH	oklch(37.28% 0.124 277.4)
XYZ	xyz(6.5334, 4.8081, 21.0017)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333580 #807E33

analogous

#335B80 #333580 #583380

triadic

#333580 #803335 #358033

tetradic

#333580 #80335B #807E33 #338058

square

#333580 #80335B #807E33 #338058

split-complementary

#333580 #805833 #5B8033

monochromatic

#101128 #222354 #333580 #4447AC #6A6CC4

Accessibility & contrast

On white

10.70

#333580 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#333580 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333580

10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333580	#FFFFFF	#000000	##FFFFFF
##333580	1.00	10.70	1.96	10.70
#FFFFFF	10.70	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004183

Deuteranopia (green-blind)

#003B7E

Tritanopia (blue-blind)

#014755

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #333580;
/* rgb */ color: rgb(51, 53, 128);
/* oklch */ color: oklch(37.3% 0.124 277.4);

Tailwind

colors: {
  custom: {
    50: '#736ca5',
    500: '#333580',
    950: '#000000',
  },
}

SCSS

$custom: #333580;
$custom-light: #736ca5;
$custom-dark: #000000;

JSON

{
  "hex": "#333580",
  "rgb": {
    "r": 51,
    "g": 53,
    "b": 128
  },
  "hsl": {
    "h": 238.442,
    "s": 43.017,
    "l": 35.098
  },
  "oklch": {
    "l": 0.37282,
    "c": 0.1239,
    "h": 277.4
  },
  "luminance": 0.04809
}

Semantic roles & 50–950 ramp

primary

#333580

secondary

#ABAA63

accent

#D055D3

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #333580

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

Preview Lab → · Contrast checker → · Palette generator →