#312899#312899

#312899 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.2% C 0.175 H 277.2°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#312899
RGB	rgb(49, 40, 153)
HSL	hsl(245, 59%, 38%)
HSV	hsv(245, 74%, 60%)
CMYK	cmyk(68%, 73.9%, 0%, 40%)
CIE-LAB	lab(25.17, 39.59, -60.00)
CIE-LCH	lch(25.17, 71.88, 303.42°)
OKLab	oklab(37.19% 0.0219 -0.1733)
OKLCH	oklch(37.19% 0.175 277.2)
XYZ	xyz(7.7733, 4.4698, 30.5839)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312899 #909928

analogous

#285799 #312899 #6A2899

triadic

#312899 #993128 #289931

tetradic

#312899 #992857 #909928 #28996A

square

#312899 #992857 #909928 #28996A

split-complementary

#312899 #996A28 #579928

monochromatic

#120F38 #211B68 #312899 #4135CA #6E65D7

Accessibility & contrast

On white

11.09

#312899 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#312899 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312899

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312899	#FFFFFF	#000000	##FFFFFF
##312899	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00409C

Deuteranopia (green-blind)

#003797

Tritanopia (blue-blind)

#00485E

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #312899;
/* rgb */ color: rgb(49, 40, 153);
/* oklch */ color: oklch(37.2% 0.175 277.2);

Tailwind

colors: {
  custom: {
    50: '#7864b8',
    500: '#312899',
    950: '#000000',
  },
}

SCSS

$custom: #312899;
$custom-light: #7864b8;
$custom-dark: #000000;

JSON

{
  "hex": "#312899",
  "rgb": {
    "r": 49,
    "g": 40,
    "b": 153
  },
  "hsl": {
    "h": 244.779,
    "s": 58.549,
    "l": 37.843
  },
  "oklch": {
    "l": 0.37192,
    "c": 0.1747,
    "h": 277.2
  },
  "luminance": 0.0447
}

Semantic roles & 50–950 ramp

primary

#312899

secondary

#B5BD60

accent

#E246D5

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0511

muted

#7C7A80

Preview Lab

Preview with #312899

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

Preview Lab → · Contrast checker → · Palette generator →