#312BAE#312BAE

#312BAE is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.8% C 0.198 H 274.6°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#312BAE
RGB	rgb(49, 43, 174)
HSL	hsl(243, 60%, 43%)
HSV	hsv(243, 75%, 68%)
CMYK	cmyk(71.8%, 75.3%, 0%, 31.8%)
CIE-LAB	lab(27.94, 44.80, -68.16)
CIE-LCH	lch(27.94, 81.56, 303.32°)
OKLab	oklab(39.81% 0.016 -0.1971)
OKLCH	oklch(39.81% 0.198 274.6)
XYZ	xyz(9.7680, 5.4358, 40.5706)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312BAE #A8AE2B

analogous

#2B67AE #312BAE #722BAE

triadic

#312BAE #AE312B #2BAE31

tetradic

#312BAE #AE2B67 #A8AE2B #2BAE72

square

#312BAE #AE2B67 #A8AE2B #2BAE72

split-complementary

#312BAE #AE722B #67AE2B

monochromatic

#15134C #231F7D #312BAE #4C45D1 #7B76DD

Accessibility & contrast

On white

10.06

#312BAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#312BAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312BAE

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312BAE	#FFFFFF	#000000	##FFFFFF
##312BAE	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B2

Deuteranopia (green-blind)

#003CAC

Tritanopia (blue-blind)

#00516A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #312bae;
/* rgb */ color: rgb(49, 43, 174);
/* oklch */ color: oklch(39.8% 0.198 274.6);

Tailwind

colors: {
  custom: {
    50: '#7c66c7',
    500: '#312bae',
    950: '#000000',
  },
}

SCSS

$custom: #312bae;
$custom-light: #7c66c7;
$custom-dark: #000000;

JSON

{
  "hex": "#312bae",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 174
  },
  "hsl": {
    "h": 242.748,
    "s": 60.369,
    "l": 42.549
  },
  "oklch": {
    "l": 0.39809,
    "c": 0.19776,
    "h": 274.6
  },
  "luminance": 0.05437
}

Semantic roles & 50–950 ramp

primary

#312BAE

secondary

#C1C570

accent

#E444DC

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312BAE

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

Preview Lab → · Contrast checker → · Palette generator →