#312FBB#312FBB

#312FBB is a dark, highly saturated blue. Relative luminance 0.063; OKLCH L 41.7% C 0.210 H 273.2°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#312FBB
RGB	rgb(49, 47, 187)
HSL	hsl(241, 60%, 46%)
HSV	hsv(241, 75%, 73%)
CMYK	cmyk(73.8%, 74.9%, 0%, 26.7%)
CIE-LAB	lab(30.09, 46.83, -72.35)
CIE-LCH	lch(30.09, 86.18, 302.91°)
OKLab	oklab(41.73% 0.0115 -0.2093)
OKLCH	oklch(41.73% 0.21 273.2)
XYZ	xyz(11.2498, 6.2727, 47.6219)
Luminance	0.0627 (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

#312FBB #B9BB2F

analogous

#2F73BB #312FBB #772FBB

triadic

#312FBB #BB312F #2FBB31

tetradic

#312FBB #BB2F73 #B9BB2F #2FBB77

square

#312FBB #BB2F73 #B9BB2F #2FBB77

split-complementary

#312FBB #BB772F #73BB2F

monochromatic

#171659 #24238A #312FBB #5553D4 #8684E0

Accessibility & contrast

On white

9.31

#312FBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#312FBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312FBB

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312FBB	#FFFFFF	#000000	##FFFFFF
##312FBB	1.00	9.31	2.25	9.31
#FFFFFF	9.31	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DBF

Deuteranopia (green-blind)

#0040B9

Tritanopia (blue-blind)

#005873

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #312fbb;
/* rgb */ color: rgb(49, 47, 187);
/* oklch */ color: oklch(41.7% 0.210 273.2);

Tailwind

colors: {
  custom: {
    50: '#7f6ad1',
    500: '#312fbb',
    950: '#000000',
  },
}

SCSS

$custom: #312fbb;
$custom-light: #7f6ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#312fbb",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 187
  },
  "hsl": {
    "h": 240.857,
    "s": 59.829,
    "l": 45.882
  },
  "oklch": {
    "l": 0.41734,
    "c": 0.20966,
    "h": 273.2
  },
  "luminance": 0.06274
}

Semantic roles & 50–950 ramp

primary

#312FBB

secondary

#C8C97C

accent

#E345E1

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0614

muted

#7D7A83

Preview Lab

Preview with #312FBB

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

Preview Lab → · Contrast checker → · Palette generator →