#312FB0#312FB0

#312FB0 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.6% C 0.196 H 274.0°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#312FB0
RGB	rgb(49, 47, 176)
HSL	hsl(241, 58%, 44%)
HSV	hsv(241, 73%, 69%)
CMYK	cmyk(72.2%, 73.3%, 0%, 31%)
CIE-LAB	lab(28.95, 43.20, -67.69)
CIE-LCH	lch(28.95, 80.30, 302.55°)
OKLab	oklab(40.59% 0.0135 -0.1958)
OKLCH	oklch(40.59% 0.196 274)
XYZ	xyz(10.1170, 5.8196, 41.6560)
Luminance	0.0582 (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

#312FB0 #AEB02F

analogous

#2F6DB0 #312FB0 #712FB0

triadic

#312FB0 #B0312F #2FB031

tetradic

#312FB0 #B02F6D #AEB02F #2FB071

square

#312FB0 #B02F6D #AEB02F #2FB071

split-complementary

#312FB0 #B0712F #6DB02F

monochromatic

#16154F #242280 #312FB0 #4F4DCF #7F7DDC

Accessibility & contrast

On white

9.70

#312FB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#312FB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312FB0

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312FB0	#FFFFFF	#000000	##FFFFFF
##312FB0	1.00	9.70	2.16	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB4

Deuteranopia (green-blind)

#003EAE

Tritanopia (blue-blind)

#00546D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #312fb0;
/* rgb */ color: rgb(49, 47, 176);
/* oklch */ color: oklch(40.6% 0.196 274.0);

Tailwind

colors: {
  custom: {
    50: '#7d69c9',
    500: '#312fb0',
    950: '#000000',
  },
}

SCSS

$custom: #312fb0;
$custom-light: #7d69c9;
$custom-dark: #000000;

JSON

{
  "hex": "#312fb0",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 176
  },
  "hsl": {
    "h": 240.93,
    "s": 57.848,
    "l": 43.725
  },
  "oklch": {
    "l": 0.40588,
    "c": 0.19623,
    "h": 274
  },
  "luminance": 0.05821
}

Semantic roles & 50–950 ramp

primary

#312FB0

secondary

#C4C576

accent

#E147DF

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312FB0

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

Preview Lab → · Contrast checker → · Palette generator →