#312CB3#312CB3

#312CB3 is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.5% C 0.203 H 274.1°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#312CB3
RGB	rgb(49, 44, 179)
HSL	hsl(242, 61%, 44%)
HSV	hsv(242, 75%, 70%)
CMYK	cmyk(72.6%, 75.4%, 0%, 29.8%)
CIE-LAB	lab(28.66, 45.87, -69.95)
CIE-LCH	lch(28.66, 83.65, 303.26°)
OKLab	oklab(40.48% 0.0145 -0.2023)
OKLCH	oklch(40.48% 0.203 274.1)
XYZ	xyz(10.3013, 5.7080, 43.1979)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.16

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312CB3 #AEB32C

analogous

#2C6AB3 #312CB3 #742CB3

triadic

#312CB3 #B3312C #2CB331

tetradic

#312CB3 #B32C6A #AEB32C #2CB374

square

#312CB3 #B32C6A #AEB32C #2CB374

split-complementary

#312CB3 #B3742C #6AB32C

monochromatic

#161451 #242082 #312CB3 #4F4AD2 #7F7BDF

Accessibility & contrast

On white

9.80

#312CB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#312CB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312CB3

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312CB3	#FFFFFF	#000000	##FFFFFF
##312CB3	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB7

Deuteranopia (green-blind)

#003DB1

Tritanopia (blue-blind)

#00536E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #312cb3;
/* rgb */ color: rgb(49, 44, 179);
/* oklch */ color: oklch(40.5% 0.203 274.1);

Tailwind

colors: {
  custom: {
    50: '#7d67cb',
    500: '#312cb3',
    950: '#000000',
  },
}

SCSS

$custom: #312cb3;
$custom-light: #7d67cb;
$custom-dark: #000000;

JSON

{
  "hex": "#312cb3",
  "rgb": {
    "r": 49,
    "g": 44,
    "b": 179
  },
  "hsl": {
    "h": 242.222,
    "s": 60.538,
    "l": 43.725
  },
  "oklch": {
    "l": 0.40475,
    "c": 0.20287,
    "h": 274.1
  },
  "luminance": 0.05709
}

Semantic roles & 50–950 ramp

primary

#312CB3

secondary

#C4C774

accent

#E444DE

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312CB3

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

Preview Lab → · Contrast checker → · Palette generator →