#312FB2#312FB2

#312FB2 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.8% C 0.199 H 273.8°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#312FB2
RGB	rgb(49, 47, 178)
HSL	hsl(241, 58%, 44%)
HSV	hsv(241, 74%, 70%)
CMYK	cmyk(72.5%, 73.6%, 0%, 30.2%)
CIE-LAB	lab(29.16, 43.86, -68.54)
CIE-LCH	lch(29.16, 81.38, 302.62°)
OKLab	oklab(40.79% 0.0132 -0.1983)
OKLCH	oklch(40.79% 0.199 273.8)
XYZ	xyz(10.3163, 5.8993, 42.7058)
Luminance	0.0590 (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

#312FB2 #B0B22F

analogous

#2F6FB2 #312FB2 #732FB2

triadic

#312FB2 #B2312F #2FB231

tetradic

#312FB2 #B22F6F #B0B22F #2FB273

square

#312FB2 #B22F6F #B0B22F #2FB273

split-complementary

#312FB2 #B2732F #6FB22F

monochromatic

#161551 #242282 #312FB2 #504ED0 #807EDD

Accessibility & contrast

On white

9.63

#312FB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#312FB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312FB2

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312FB2	#FFFFFF	#000000	##FFFFFF
##312FB2	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB6

Deuteranopia (green-blind)

#003EB0

Tritanopia (blue-blind)

#00556E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #312fb2;
/* rgb */ color: rgb(49, 47, 178);
/* oklch */ color: oklch(40.8% 0.199 273.8);

Tailwind

colors: {
  custom: {
    50: '#7d69ca',
    500: '#312fb2',
    950: '#000000',
  },
}

SCSS

$custom: #312fb2;
$custom-light: #7d69ca;
$custom-dark: #000000;

JSON

{
  "hex": "#312fb2",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 178
  },
  "hsl": {
    "h": 240.916,
    "s": 58.222,
    "l": 44.118
  },
  "oklch": {
    "l": 0.40794,
    "c": 0.1987,
    "h": 273.8
  },
  "luminance": 0.059
}

Semantic roles & 50–950 ramp

primary

#312FB2

secondary

#C5C677

accent

#E146DF

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312FB2

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

Preview Lab → · Contrast checker → · Palette generator →