#3331B8#3331B8

#3331B8 is a dark, highly saturated blue. Relative luminance 0.064; OKLCH L 41.8% C 0.204 H 273.8°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#3331B8
RGB	rgb(51, 49, 184)
HSL	hsl(241, 58%, 46%)
HSV	hsv(241, 73%, 72%)
CMYK	cmyk(72.3%, 73.4%, 0%, 27.8%)
CIE-LAB	lab(30.30, 44.91, -70.22)
CIE-LCH	lch(30.30, 83.35, 302.60°)
OKLab	oklab(41.83% 0.0135 -0.2031)
OKLCH	oklch(41.83% 0.204 273.8)
XYZ	xyz(11.1124, 6.3600, 45.9801)
Luminance	0.0636 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 3.65

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3331B8 #B6B831

analogous

#3172B8 #3331B8 #7631B8

triadic

#3331B8 #B83331 #31B833

tetradic

#3331B8 #B83172 #B6B831 #31B876

square

#3331B8 #B83172 #B6B831 #31B876

split-complementary

#3331B8 #B87631 #72B831

monochromatic

#181757 #262488 #3331B8 #5655D2 #8685DE

Accessibility & contrast

On white

9.24

#3331B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#3331B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3331B8

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3331B8	#FFFFFF	#000000	##FFFFFF
##3331B8	1.00	9.24	2.27	9.24
#FFFFFF	9.24	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBC

Deuteranopia (green-blind)

#0041B6

Tritanopia (blue-blind)

#005872

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3331b8;
/* rgb */ color: rgb(51, 49, 184);
/* oklch */ color: oklch(41.8% 0.204 273.8);

Tailwind

colors: {
  custom: {
    50: '#7f6bcf',
    500: '#3331b8',
    950: '#000000',
  },
}

SCSS

$custom: #3331b8;
$custom-light: #7f6bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3331b8",
  "rgb": {
    "r": 51,
    "g": 49,
    "b": 184
  },
  "hsl": {
    "h": 240.889,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.41826,
    "c": 0.20355,
    "h": 273.8
  },
  "luminance": 0.06361
}

Semantic roles & 50–950 ramp

primary

#3331B8

secondary

#C7C87D

accent

#E147DF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3331B8

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

Preview Lab → · Contrast checker → · Palette generator →