#313D63#313D63

#313D63 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.8% C 0.068 H 269.6°. Best body text is #FFFFFF at 10.62:1 contrast (WCAG AA passes).

Color values

HEX	#313D63
RGB	rgb(49, 61, 99)
HSL	hsl(226, 34%, 29%)
HSV	hsv(226, 51%, 39%)
CMYK	cmyk(50.5%, 38.4%, 0%, 61.2%)
CIE-LAB	lab(26.42, 6.80, -23.99)
CIE-LCH	lch(26.42, 24.94, 285.82°)
OKLab	oklab(36.81% -0.0005 -0.0676)
OKLCH	oklch(36.81% 0.068 269.6)
XYZ	xyz(5.1868, 4.8910, 12.4727)
Luminance	0.0489 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313D63 #635731

analogous

#315663 #313D63 #3E3163

triadic

#313D63 #63313D #3D6331

tetradic

#313D63 #633156 #635731 #31633E

square

#313D63 #633156 #635731 #31633E

split-complementary

#313D63 #633E31 #566331

monochromatic

#0A0D14 #1D243A #313D63 #45568C #5F72B0

Accessibility & contrast

On white

10.62

#313D63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#313D63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313D63

10.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313D63	#FFFFFF	#000000	##FFFFFF
##313D63	1.00	10.62	1.98	10.62
#FFFFFF	10.62	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4165

Deuteranopia (green-blind)

#2A3C62

Tritanopia (blue-blind)

#1E454B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #313d63;
/* rgb */ color: rgb(49, 61, 99);
/* oklch */ color: oklch(36.8% 0.068 269.6);

Tailwind

colors: {
  custom: {
    50: '#6c728f',
    500: '#313d63',
    950: '#000000',
  },
}

SCSS

$custom: #313d63;
$custom-light: #6c728f;
$custom-dark: #000000;

JSON

{
  "hex": "#313d63",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 99
  },
  "hsl": {
    "h": 225.6,
    "s": 33.784,
    "l": 29.02
  },
  "oklch": {
    "l": 0.3681,
    "c": 0.06758,
    "h": 269.6
  },
  "luminance": 0.04891
}

Semantic roles & 50–950 ramp

primary

#313D63

secondary

#94875C

accent

#B05ECA

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#07070C

muted

#7A7A7D

Preview Lab

Preview with #313D63

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

Preview Lab → · Contrast checker → · Palette generator →