#312DB2#312DB2

#312DB2 is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.5% C 0.201 H 274.1°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#312DB2
RGB	rgb(49, 45, 178)
HSL	hsl(242, 60%, 44%)
HSV	hsv(242, 75%, 70%)
CMYK	cmyk(72.5%, 74.7%, 0%, 30.2%)
CIE-LAB	lab(28.75, 44.99, -69.21)
CIE-LCH	lch(28.75, 82.55, 303.03°)
OKLab	oklab(40.51% 0.0142 -0.2002)
OKLCH	oklch(40.51% 0.201 274.1)
XYZ	xyz(10.2382, 5.7431, 42.6798)
Luminance	0.0574 (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

#312DB2 #AEB22D

analogous

#2D6BB2 #312DB2 #732DB2

triadic

#312DB2 #B2312D #2DB231

tetradic

#312DB2 #B22D6B #AEB22D #2DB273

square

#312DB2 #B22D6B #AEB22D #2DB273

split-complementary

#312DB2 #B2732D #6BB22D

monochromatic

#161450 #242181 #312DB2 #4F4BD1 #7F7CDE

Accessibility & contrast

On white

9.77

#312DB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#312DB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312DB2

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312DB2	#FFFFFF	#000000	##FFFFFF
##312DB2	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB6

Deuteranopia (green-blind)

#003DB0

Tritanopia (blue-blind)

#00546D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #312db2;
/* rgb */ color: rgb(49, 45, 178);
/* oklch */ color: oklch(40.5% 0.201 274.1);

Tailwind

colors: {
  custom: {
    50: '#7d68ca',
    500: '#312db2',
    950: '#000000',
  },
}

SCSS

$custom: #312db2;
$custom-light: #7d68ca;
$custom-dark: #000000;

JSON

{
  "hex": "#312db2",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 178
  },
  "hsl": {
    "h": 241.805,
    "s": 59.641,
    "l": 43.725
  },
  "oklch": {
    "l": 0.40509,
    "c": 0.20068,
    "h": 274.1
  },
  "luminance": 0.05744
}

Semantic roles & 50–950 ramp

primary

#312DB2

secondary

#C4C675

accent

#E345DE

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312DB2

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

Preview Lab → · Contrast checker → · Palette generator →