#312BAD#312BAD

#312BAD is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.7% C 0.197 H 274.7°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#312BAD
RGB	rgb(49, 43, 173)
HSL	hsl(243, 60%, 42%)
HSV	hsv(243, 75%, 68%)
CMYK	cmyk(71.7%, 75.1%, 0%, 32.2%)
CIE-LAB	lab(27.84, 44.47, -67.73)
CIE-LCH	lch(27.84, 81.02, 303.29°)
OKLab	oklab(39.7% 0.0162 -0.1959)
OKLCH	oklch(39.7% 0.197 274.7)
XYZ	xyz(9.6708, 5.3969, 40.0591)
Luminance	0.0540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312BAD #A7AD2B

analogous

#2B66AD #312BAD #722BAD

triadic

#312BAD #AD312B #2BAD31

tetradic

#312BAD #AD2B66 #A7AD2B #2BAD72

square

#312BAD #AD2B66 #A7AD2B #2BAD72

split-complementary

#312BAD #AD722B #66AD2B

monochromatic

#15134B #231F7C #312BAD #4B45D1 #7A76DD

Accessibility & contrast

On white

10.10

#312BAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#312BAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312BAD

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312BAD	#FFFFFF	#000000	##FFFFFF
##312BAD	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B1

Deuteranopia (green-blind)

#003CAB

Tritanopia (blue-blind)

#00516A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #312bad;
/* rgb */ color: rgb(49, 43, 173);
/* oklch */ color: oklch(39.7% 0.197 274.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#312bad",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 173
  },
  "hsl": {
    "h": 242.769,
    "s": 60.185,
    "l": 42.353
  },
  "oklch": {
    "l": 0.39703,
    "c": 0.19653,
    "h": 274.7
  },
  "luminance": 0.05398
}

Semantic roles & 50–950 ramp

primary

#312BAD

secondary

#C1C46F

accent

#E344DC

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312BAD

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

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