#313366#313366

#313366 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.7% C 0.087 H 279.1°. Best body text is #FFFFFF at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#313366
RGB	rgb(49, 51, 102)
HSL	hsl(238, 35%, 30%)
HSV	hsv(238, 52%, 40%)
CMYK	cmyk(52%, 50%, 0%, 60%)
CIE-LAB	lab(23.60, 14.72, -30.40)
CIE-LCH	lch(23.60, 33.78, 295.84°)
OKLab	oklab(34.71% 0.0139 -0.0864)
OKLCH	oklch(34.71% 0.088 279.1)
XYZ	xyz(4.8480, 3.9797, 13.0805)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313366 #666431

analogous

#314E66 #313366 #4A3166

triadic

#313366 #663133 #336631

tetradic

#313366 #66314E #666431 #31664A

square

#313366 #66314E #666431 #31664A

split-complementary

#313366 #664A31 #4E6631

monochromatic

#0A0A15 #1D1E3D #313366 #45488F #5F62B2

Accessibility & contrast

On white

11.69

#313366 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#313366 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313366

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313366	#FFFFFF	#000000	##FFFFFF
##313366	1.00	11.69	1.80	11.69
#FFFFFF	11.69	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D3A68

Deuteranopia (green-blind)

#193665

Tritanopia (blue-blind)

#1D3E47

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #313366;
/* rgb */ color: rgb(49, 51, 102);
/* oklch */ color: oklch(34.7% 0.087 279.1);

Tailwind

colors: {
  custom: {
    50: '#6d6a92',
    500: '#313366',
    950: '#000000',
  },
}

SCSS

$custom: #313366;
$custom-light: #6d6a92;
$custom-dark: #000000;

JSON

{
  "hex": "#313366",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 102
  },
  "hsl": {
    "h": 237.736,
    "s": 35.099,
    "l": 29.608
  },
  "oklch": {
    "l": 0.34713,
    "c": 0.0875,
    "h": 279.1
  },
  "luminance": 0.0398
}

Semantic roles & 50–950 ramp

primary

#313366

secondary

#97955C

accent

#C75DCB

background

#F6F6F9

surface

#ECEBF1

border

#C7C6CB

text

#07060D

muted

#7A7A7E

Preview Lab

Preview with #313366

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

Preview Lab → · Contrast checker → · Palette generator →