#3331AD#3331AD

#3331AD is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.7% C 0.190 H 274.6°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#3331AD
RGB	rgb(51, 49, 173)
HSL	hsl(241, 56%, 44%)
HSV	hsv(241, 72%, 68%)
CMYK	cmyk(70.5%, 71.7%, 0%, 32.2%)
CIE-LAB	lab(29.20, 41.24, -65.48)
CIE-LCH	lch(29.20, 77.38, 302.21°)
OKLab	oklab(40.71% 0.0154 -0.1893)
OKLCH	oklch(40.71% 0.19 274.6)
XYZ	xyz(10.0039, 5.9166, 40.1419)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3331AD #ABAD31

analogous

#316DAD #3331AD #7131AD

triadic

#3331AD #AD3331 #31AD33

tetradic

#3331AD #AD316D #ABAD31 #31AD71

square

#3331AD #AD316D #ABAD31 #31AD71

split-complementary

#3331AD #AD7131 #6DAD31

monochromatic

#17164E #25237D #3331AD #504ECD #7F7EDA

Accessibility & contrast

On white

9.62

#3331AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#3331AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3331AD

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3331AD	#FFFFFF	#000000	##FFFFFF
##3331AD	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB1

Deuteranopia (green-blind)

#003FAB

Tritanopia (blue-blind)

#00546B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3331ad;
/* rgb */ color: rgb(51, 49, 173);
/* oklch */ color: oklch(40.7% 0.190 274.6);

Tailwind

colors: {
  custom: {
    50: '#7c6ac7',
    500: '#3331ad',
    950: '#000000',
  },
}

SCSS

$custom: #3331ad;
$custom-light: #7c6ac7;
$custom-dark: #000000;

JSON

{
  "hex": "#3331ad",
  "rgb": {
    "r": 51,
    "g": 49,
    "b": 173
  },
  "hsl": {
    "h": 240.968,
    "s": 55.856,
    "l": 43.529
  },
  "oklch": {
    "l": 0.40709,
    "c": 0.1899,
    "h": 274.6
  },
  "luminance": 0.05918
}

Semantic roles & 50–950 ramp

primary

#3331AD

secondary

#C2C377

accent

#DF49DD

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3331AD

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

Preview Lab → · Contrast checker → · Palette generator →