#312DAF#312DAF

#312DAF is a dark, vivid blue. Relative luminance 0.056; OKLCH L 40.2% C 0.197 H 274.3°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#312DAF
RGB	rgb(49, 45, 175)
HSL	hsl(242, 59%, 43%)
HSV	hsv(242, 74%, 69%)
CMYK	cmyk(72%, 74.3%, 0%, 31.4%)
CIE-LAB	lab(28.44, 44.01, -67.93)
CIE-LCH	lch(28.44, 80.94, 302.94°)
OKLab	oklab(40.2% 0.0148 -0.1965)
OKLCH	oklch(40.2% 0.197 274.3)
XYZ	xyz(9.9403, 5.6239, 41.1108)
Luminance	0.0563 (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

#312DAF #ABAF2D

analogous

#2D6AAF #312DAF #722DAF

triadic

#312DAF #AF312D #2DAF31

tetradic

#312DAF #AF2D6A #ABAF2D #2DAF72

square

#312DAF #AF2D6A #ABAF2D #2DAF72

split-complementary

#312DAF #AF722D #6AAF2D

monochromatic

#16144E #23207E #312DAF #4D49D0 #7D7ADD

Accessibility & contrast

On white

9.88

#312DAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#312DAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312DAF

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312DAF	#FFFFFF	#000000	##FFFFFF
##312DAF	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B3

Deuteranopia (green-blind)

#003DAD

Tritanopia (blue-blind)

#00526C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #312daf;
/* rgb */ color: rgb(49, 45, 175);
/* oklch */ color: oklch(40.2% 0.197 274.3);

Tailwind

colors: {
  custom: {
    50: '#7c68c8',
    500: '#312daf',
    950: '#000000',
  },
}

SCSS

$custom: #312daf;
$custom-light: #7c68c8;
$custom-dark: #000000;

JSON

{
  "hex": "#312daf",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 175
  },
  "hsl": {
    "h": 241.846,
    "s": 59.091,
    "l": 43.137
  },
  "oklch": {
    "l": 0.40195,
    "c": 0.19701,
    "h": 274.3
  },
  "luminance": 0.05625
}

Semantic roles & 50–950 ramp

primary

#312DAF

secondary

#C2C573

accent

#E246DD

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312DAF

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

Preview Lab → · Contrast checker → · Palette generator →