#312AA1#312AA1

#312AA1 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.3% C 0.183 H 276.0°. Best body text is #FFFFFF at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#312AA1
RGB	rgb(49, 42, 161)
HSL	hsl(244, 59%, 40%)
HSV	hsv(244, 74%, 63%)
CMYK	cmyk(69.6%, 73.9%, 0%, 36.9%)
CIE-LAB	lab(26.39, 41.09, -62.86)
CIE-LCH	lch(26.39, 75.10, 303.17°)
OKLab	oklab(38.31% 0.0191 -0.1817)
OKLCH	oklch(38.31% 0.183 276)
XYZ	xyz(8.5255, 4.8813, 34.2042)
Luminance	0.0488 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312AA1 #9AA12A

analogous

#2A5FA1 #312AA1 #6C2AA1

triadic

#312AA1 #A1312A #2AA131

tetradic

#312AA1 #A12A5F #9AA12A #2AA16C

square

#312AA1 #A12A5F #9AA12A #2AA16C

split-complementary

#312AA1 #A16C2A #5FA12A

monochromatic

#131140 #221D70 #312AA1 #453CCC #736DD9

Accessibility & contrast

On white

10.63

#312AA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#312AA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312AA1

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312AA1	#FFFFFF	#000000	##FFFFFF
##312AA1	1.00	10.63	1.98	10.63
#FFFFFF	10.63	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A4

Deuteranopia (green-blind)

#00399F

Tritanopia (blue-blind)

#004C63

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #312aa1;
/* rgb */ color: rgb(49, 42, 161);
/* oklch */ color: oklch(38.3% 0.183 276.0);

Tailwind

colors: {
  custom: {
    50: '#7a65be',
    500: '#312aa1',
    950: '#000000',
  },
}

SCSS

$custom: #312aa1;
$custom-light: #7a65be;
$custom-dark: #000000;

JSON

{
  "hex": "#312aa1",
  "rgb": {
    "r": 49,
    "g": 42,
    "b": 161
  },
  "hsl": {
    "h": 243.529,
    "s": 58.621,
    "l": 39.804
  },
  "oklch": {
    "l": 0.38309,
    "c": 0.18268,
    "h": 276
  },
  "luminance": 0.04882
}

Semantic roles & 50–950 ramp

primary

#312AA1

secondary

#BAC067

accent

#E246D9

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #312AA1

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

Preview Lab → · Contrast checker → · Palette generator →