#312AAC#312AAC

#312AAC is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.5% C 0.196 H 274.9°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#312AAC
RGB	rgb(49, 42, 172)
HSL	hsl(243, 61%, 42%)
HSV	hsv(243, 76%, 67%)
CMYK	cmyk(71.5%, 75.6%, 0%, 32.5%)
CIE-LAB	lab(27.54, 44.70, -67.63)
CIE-LCH	lch(27.54, 81.06, 303.46°)
OKLab	oklab(39.46% 0.0169 -0.1955)
OKLCH	oklch(39.46% 0.196 274.9)
XYZ	xyz(9.5385, 5.2865, 39.5394)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312AAC #A5AC2A

analogous

#2A64AC #312AAC #722AAC

triadic

#312AAC #AC312A #2AAC31

tetradic

#312AAC #AC2A64 #A5AC2A #2AAC72

square

#312AAC #AC2A64 #A5AC2A #2AAC72

split-complementary

#312AAC #AC722A #64AC2A

monochromatic

#15124A #231E7B #312AAC #4A42D1 #7973DD

Accessibility & contrast

On white

10.21

#312AAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#312AAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312AAC

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312AAC	#FFFFFF	#000000	##FFFFFF
##312AAC	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B0

Deuteranopia (green-blind)

#003BAA

Tritanopia (blue-blind)

#005069

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #312aac;
/* rgb */ color: rgb(49, 42, 172);
/* oklch */ color: oklch(39.5% 0.196 274.9);

Tailwind

colors: {
  custom: {
    50: '#7c66c6',
    500: '#312aac',
    950: '#000000',
  },
}

SCSS

$custom: #312aac;
$custom-light: #7c66c6;
$custom-dark: #000000;

JSON

{
  "hex": "#312aac",
  "rgb": {
    "r": 49,
    "g": 42,
    "b": 172
  },
  "hsl": {
    "h": 243.231,
    "s": 60.748,
    "l": 41.961
  },
  "oklch": {
    "l": 0.39459,
    "c": 0.19628,
    "h": 274.9
  },
  "luminance": 0.05287
}

Semantic roles & 50–950 ramp

primary

#312AAC

secondary

#C0C46D

accent

#E444DB

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312AAC

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

Preview Lab → · Contrast checker → · Palette generator →