#312CAF#312CAF

#312CAF is a dark, vivid blue. Relative luminance 0.055; OKLCH L 40.1% C 0.198 H 274.4°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#312CAF
RGB	rgb(49, 44, 175)
HSL	hsl(242, 60%, 43%)
HSV	hsv(242, 75%, 69%)
CMYK	cmyk(72%, 74.9%, 0%, 31.4%)
CIE-LAB	lab(28.24, 44.57, -68.26)
CIE-LCH	lch(28.24, 81.52, 303.14°)
OKLab	oklab(40.05% 0.0153 -0.1974)
OKLCH	oklch(40.05% 0.198 274.4)
XYZ	xyz(9.9026, 5.5485, 41.0982)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312CAF #AAAF2C

analogous

#2C68AF #312CAF #722CAF

triadic

#312CAF #AF312C #2CAF31

tetradic

#312CAF #AF2C68 #AAAF2C #2CAF72

square

#312CAF #AF2C68 #AAAF2C #2CAF72

split-complementary

#312CAF #AF722C #68AF2C

monochromatic

#16134D #23207E #312CAF #4D47D1 #7C78DD

Accessibility & contrast

On white

9.95

#312CAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#312CAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312CAF

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312CAF	#FFFFFF	#000000	##FFFFFF
##312CAF	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B3

Deuteranopia (green-blind)

#003CAD

Tritanopia (blue-blind)

#00526B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #312caf;
/* rgb */ color: rgb(49, 44, 175);
/* oklch */ color: oklch(40.1% 0.198 274.4);

Tailwind

colors: {
  custom: {
    50: '#7d67c8',
    500: '#312caf',
    950: '#000000',
  },
}

SCSS

$custom: #312caf;
$custom-light: #7d67c8;
$custom-dark: #000000;

JSON

{
  "hex": "#312caf",
  "rgb": {
    "r": 49,
    "g": 44,
    "b": 175
  },
  "hsl": {
    "h": 242.29,
    "s": 59.817,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40053,
    "c": 0.198,
    "h": 274.4
  },
  "luminance": 0.05549
}

Semantic roles & 50–950 ramp

primary

#312CAF

secondary

#C2C572

accent

#E345DD

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312CAF

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

Preview Lab → · Contrast checker → · Palette generator →