#312CA8#312CA8

#312CA8 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.3% C 0.189 H 275.0°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#312CA8
RGB	rgb(49, 44, 168)
HSL	hsl(242, 58%, 42%)
HSV	hsv(242, 74%, 66%)
CMYK	cmyk(70.8%, 73.8%, 0%, 34.1%)
CIE-LAB	lab(27.52, 42.26, -65.25)
CIE-LCH	lch(27.52, 77.74, 302.93°)
OKLab	oklab(39.32% 0.0166 -0.1886)
OKLCH	oklch(39.32% 0.189 275)
XYZ	xyz(9.2329, 5.2806, 37.5709)
Luminance	0.0528 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312CA8 #A3A82C

analogous

#2C65A8 #312CA8 #6F2CA8

triadic

#312CA8 #A8312C #2CA831

tetradic

#312CA8 #A82C65 #A3A82C #2CA86F

square

#312CA8 #A82C65 #A3A82C #2CA86F

split-complementary

#312CA8 #A86F2C #65A82C

monochromatic

#151347 #231F78 #312CA8 #4943CE #7874DB

Accessibility & contrast

On white

10.21

#312CA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#312CA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312CA8

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312CA8	#FFFFFF	#000000	##FFFFFF
##312CA8	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AC

Deuteranopia (green-blind)

#003BA6

Tritanopia (blue-blind)

#004F67

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #312ca8;
/* rgb */ color: rgb(49, 44, 168);
/* oklch */ color: oklch(39.3% 0.189 275.0);

Tailwind

colors: {
  custom: {
    50: '#7b67c3',
    500: '#312ca8',
    950: '#000000',
  },
}

SCSS

$custom: #312ca8;
$custom-light: #7b67c3;
$custom-dark: #000000;

JSON

{
  "hex": "#312ca8",
  "rgb": {
    "r": 49,
    "g": 44,
    "b": 168
  },
  "hsl": {
    "h": 242.419,
    "s": 58.491,
    "l": 41.569
  },
  "oklch": {
    "l": 0.39323,
    "c": 0.18936,
    "h": 275
  },
  "luminance": 0.05281
}

Semantic roles & 50–950 ramp

primary

#312CA8

secondary

#BFC26E

accent

#E246DB

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312CA8

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

Preview Lab → · Contrast checker → · Palette generator →