#313E9C#313E9C

#313E9C is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.3% C 0.152 H 271.9°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#313E9C
RGB	rgb(49, 62, 156)
HSL	hsl(233, 52%, 40%)
HSV	hsv(233, 69%, 61%)
CMYK	cmyk(68.6%, 60.3%, 0%, 38.8%)
CIE-LAB	lab(30.63, 26.78, -52.88)
CIE-LCH	lch(30.63, 59.28, 296.86°)
OKLab	oklab(41.25% 0.0051 -0.1524)
OKLCH	oklch(41.25% 0.152 271.9)
XYZ	xyz(8.9880, 6.4977, 32.2266)
Luminance	0.0650 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E9C #9C8F31

analogous

#31749C #313E9C #59319C

triadic

#313E9C #9C313E #3E9C31

tetradic

#313E9C #9C3174 #9C8F31 #319C59

square

#313E9C #9C3174 #9C8F31 #319C59

split-complementary

#313E9C #9C5931 #749C31

monochromatic

#14193F #222B6D #313E9C #4555C5 #7480D3

Accessibility & contrast

On white

9.13

#313E9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#313E9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E9C

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E9C	#FFFFFF	#000000	##FFFFFF
##313E9C	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9F

Deuteranopia (green-blind)

#00439A

Tritanopia (blue-blind)

#005567

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #313e9c;
/* rgb */ color: rgb(49, 62, 156);
/* oklch */ color: oklch(41.3% 0.152 271.9);

Tailwind

colors: {
  custom: {
    50: '#7773ba',
    500: '#313e9c',
    950: '#000000',
  },
}

SCSS

$custom: #313e9c;
$custom-light: #7773ba;
$custom-dark: #000000;

JSON

{
  "hex": "#313e9c",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 156
  },
  "hsl": {
    "h": 232.71,
    "s": 52.195,
    "l": 40.196
  },
  "oklch": {
    "l": 0.41253,
    "c": 0.15247,
    "h": 271.9
  },
  "luminance": 0.06499
}

Semantic roles & 50–950 ramp

primary

#313E9C

secondary

#BBB26D

accent

#CA4CDC

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #313E9C

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

Preview Lab → · Contrast checker → · Palette generator →