#331DAC#331DAC

#331DAC is a dark, highly saturated blue. Relative luminance 0.046; OKLCH L 38.0% C 0.207 H 277.0°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#331DAC
RGB	rgb(51, 29, 172)
HSL	hsl(249, 71%, 39%)
HSV	hsv(249, 83%, 67%)
CMYK	cmyk(70.3%, 83.1%, 0%, 32.5%)
CIE-LAB	lab(25.44, 51.34, -71.08)
CIE-LCH	lch(25.44, 87.69, 305.84°)
OKLab	oklab(38.04% 0.0254 -0.2054)
OKLCH	oklch(38.04% 0.207 277)
XYZ	xyz(9.2486, 4.5602, 39.4145)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331DAC #96AC1D

analogous

#1D4FAC #331DAC #7B1DAC

triadic

#331DAC #AC331D #1DAC33

tetradic

#331DAC #AC1D4F #96AC1D #1DAC7B

square

#331DAC #AC1D4F #96AC1D #1DAC7B

split-complementary

#331DAC #AC7B1D #4FAC1D

monochromatic

#140B43 #231478 #331DAC #462BDB #745FE4

Accessibility & contrast

On white

10.98

#331DAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#331DAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331DAC

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331DAC	#FFFFFF	#000000	##FFFFFF
##331DAC	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042B0

Deuteranopia (green-blind)

#0036AA

Tritanopia (blue-blind)

#004B66

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #331dac;
/* rgb */ color: rgb(51, 29, 172);
/* oklch */ color: oklch(38.0% 0.207 277.0);

Tailwind

colors: {
  custom: {
    50: '#7e5fc6',
    500: '#331dac',
    950: '#000000',
  },
}

SCSS

$custom: #331dac;
$custom-light: #7e5fc6;
$custom-dark: #000000;

JSON

{
  "hex": "#331dac",
  "rgb": {
    "r": 51,
    "g": 29,
    "b": 172
  },
  "hsl": {
    "h": 249.231,
    "s": 71.144,
    "l": 39.412
  },
  "oklch": {
    "l": 0.38036,
    "c": 0.20695,
    "h": 277
  },
  "luminance": 0.04561
}

Semantic roles & 50–950 ramp

primary

#331DAC

secondary

#B8C85C

accent

#EE3AD2

background

#F8F5FC

surface

#F0E9F8

border

#CBC5D1

text

#0C0513

muted

#7D7982

Preview Lab

Preview with #331DAC

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

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