#312DAC#312DAC

#312DAC is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.9% C 0.193 H 274.5°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#312DAC
RGB	rgb(49, 45, 172)
HSL	hsl(242, 59%, 43%)
HSV	hsv(242, 74%, 67%)
CMYK	cmyk(71.5%, 73.8%, 0%, 32.5%)
CIE-LAB	lab(28.13, 43.01, -66.64)
CIE-LCH	lch(28.13, 79.32, 302.84°)
OKLab	oklab(39.88% 0.0153 -0.1927)
OKLCH	oklch(39.88% 0.193 274.5)
XYZ	xyz(9.6489, 5.5074, 39.5762)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.62

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312DAC #A8AC2D

analogous

#2D68AC #312DAC #712DAC

triadic

#312DAC #AC312D #2DAC31

tetradic

#312DAC #AC2D68 #A8AC2D #2DAC71

square

#312DAC #AC2D68 #A8AC2D #2DAC71

split-complementary

#312DAC #AC712D #68AC2D

monochromatic

#15144B #23207B #312DAC #4C47CF #7B78DC

Accessibility & contrast

On white

9.99

#312DAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#312DAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312DAC

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312DAC	#FFFFFF	#000000	##FFFFFF
##312DAC	1.00	9.99	2.10	9.99
#FFFFFF	9.99	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B0

Deuteranopia (green-blind)

#003CAA

Tritanopia (blue-blind)

#00516A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #312dac;
/* rgb */ color: rgb(49, 45, 172);
/* oklch */ color: oklch(39.9% 0.193 274.5);

Tailwind

colors: {
  custom: {
    50: '#7c68c6',
    500: '#312dac',
    950: '#000000',
  },
}

SCSS

$custom: #312dac;
$custom-light: #7c68c6;
$custom-dark: #000000;

JSON

{
  "hex": "#312dac",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 172
  },
  "hsl": {
    "h": 241.89,
    "s": 58.525,
    "l": 42.549
  },
  "oklch": {
    "l": 0.39883,
    "c": 0.19331,
    "h": 274.5
  },
  "luminance": 0.05508
}

Semantic roles & 50–950 ramp

primary

#312DAC

secondary

#C1C471

accent

#E246DD

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312DAC

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

Preview Lab → · Contrast checker → · Palette generator →