#312597#312597

#312597 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.6% C 0.175 H 278.0°. Best body text is #FFFFFF at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#312597
RGB	rgb(49, 37, 151)
HSL	hsl(246, 61%, 37%)
HSV	hsv(246, 75%, 59%)
CMYK	cmyk(67.5%, 75.5%, 0%, 40.8%)
CIE-LAB	lab(24.35, 40.64, -60.12)
CIE-LCH	lch(24.35, 72.56, 304.06°)
OKLab	oklab(36.55% 0.0243 -0.1736)
OKLCH	oklch(36.55% 0.175 278)
XYZ	xyz(7.5123, 4.2098, 29.6888)
Luminance	0.0421 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312597 #8B9725

analogous

#255297 #312597 #6A2597

triadic

#312597 #973125 #259731

tetradic

#312597 #972552 #8B9725 #25976A

square

#312597 #972552 #8B9725 #25976A

split-complementary

#312597 #976A25 #529725

monochromatic

#110D35 #211966 #312597 #4131C8 #6B5FD8

Accessibility & contrast

On white

11.40

#312597 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#312597 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312597

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312597	#FFFFFF	#000000	##FFFFFF
##312597	1.00	11.40	1.84	11.40
#FFFFFF	11.40	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E9A

Deuteranopia (green-blind)

#003595

Tritanopia (blue-blind)

#00465C

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #312597;
/* rgb */ color: rgb(49, 37, 151);
/* oklch */ color: oklch(36.6% 0.175 278.0);

Tailwind

colors: {
  custom: {
    50: '#7862b7',
    500: '#312597',
    950: '#000000',
  },
}

SCSS

$custom: #312597;
$custom-light: #7862b7;
$custom-dark: #000000;

JSON

{
  "hex": "#312597",
  "rgb": {
    "r": 49,
    "g": 37,
    "b": 151
  },
  "hsl": {
    "h": 246.316,
    "s": 60.638,
    "l": 36.863
  },
  "oklch": {
    "l": 0.36553,
    "c": 0.17532,
    "h": 278
  },
  "luminance": 0.0421
}

Semantic roles & 50–950 ramp

primary

#312597

secondary

#B2BD5B

accent

#E444D3

background

#F7F5FB

surface

#EEEAF6

border

#C9C6D0

text

#0A0511

muted

#7C7980

Preview Lab

Preview with #312597

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

Preview Lab → · Contrast checker → · Palette generator →