#313EAC#313EAC

#313EAC is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.174 H 271.5°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#313EAC
RGB	rgb(49, 62, 172)
HSL	hsl(234, 56%, 43%)
HSV	hsv(234, 72%, 67%)
CMYK	cmyk(71.5%, 64%, 0%, 32.5%)
CIE-LAB	lab(31.98, 32.60, -60.32)
CIE-LCH	lch(31.98, 68.57, 298.39°)
OKLab	oklab(42.66% 0.0047 -0.1742)
OKLCH	oklch(42.66% 0.174 271.5)
XYZ	xyz(10.4331, 7.0757, 39.8376)
Luminance	0.0708 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.23

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313EAC #AC9F31

analogous

#317BAC #313EAC #6231AC

triadic

#313EAC #AC313E #3EAC31

tetradic

#313EAC #AC317B #AC9F31 #31AC62

square

#313EAC #AC317B #AC9F31 #31AC62

split-complementary

#313EAC #AC6231 #7BAC31

monochromatic

#161C4D #232D7C #313EAC #4E5BCC #7D87DA

Accessibility & contrast

On white

8.69

#313EAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#313EAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313EAC

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313EAC	#FFFFFF	#000000	##FFFFFF
##313EAC	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B0

Deuteranopia (green-blind)

#0046AA

Tritanopia (blue-blind)

#005A6F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #313eac;
/* rgb */ color: rgb(49, 62, 172);
/* oklch */ color: oklch(42.7% 0.174 271.5);

Tailwind

colors: {
  custom: {
    50: '#7a73c6',
    500: '#313eac',
    950: '#000000',
  },
}

SCSS

$custom: #313eac;
$custom-light: #7a73c6;
$custom-dark: #000000;

JSON

{
  "hex": "#313eac",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 172
  },
  "hsl": {
    "h": 233.659,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.42663,
    "c": 0.17428,
    "h": 271.5
  },
  "luminance": 0.07077
}

Semantic roles & 50–950 ramp

primary

#313EAC

secondary

#C3BB76

accent

#CF49DF

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #313EAC

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

Preview Lab → · Contrast checker → · Palette generator →