#313A70#313A70

#313A70 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 37.0% C 0.093 H 273.9°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#313A70
RGB	rgb(49, 58, 112)
HSL	hsl(231, 39%, 32%)
HSV	hsv(231, 56%, 44%)
CMYK	cmyk(56.3%, 48.2%, 0%, 56.1%)
CIE-LAB	lab(26.30, 13.43, -32.53)
CIE-LCH	lch(26.30, 35.19, 292.43°)
OKLab	oklab(36.97% 0.0063 -0.0926)
OKLCH	oklch(36.97% 0.093 273.9)
XYZ	xyz(5.7034, 4.8485, 15.9614)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313A70 #706731

analogous

#315A70 #313A70 #483170

triadic

#313A70 #70313A #3A7031

tetradic

#313A70 #70315A #706731 #317048

square

#313A70 #70315A #706731 #317048

split-complementary

#313A70 #704831 #5A7031

monochromatic

#0C0E1B #1E2445 #313A70 #44509B #616EBA

Accessibility & contrast

On white

10.66

#313A70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#313A70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313A70

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313A70	#FFFFFF	#000000	##FFFFFF
##313A70	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224172

Deuteranopia (green-blind)

#1B3C6F

Tritanopia (blue-blind)

#13464F

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #313a70;
/* rgb */ color: rgb(49, 58, 112);
/* oklch */ color: oklch(37.0% 0.093 273.9);

Tailwind

colors: {
  custom: {
    50: '#6e6f99',
    500: '#313a70',
    950: '#000000',
  },
}

SCSS

$custom: #313a70;
$custom-light: #6e6f99;
$custom-dark: #000000;

JSON

{
  "hex": "#313a70",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 112
  },
  "hsl": {
    "h": 231.429,
    "s": 39.13,
    "l": 31.569
  },
  "oklch": {
    "l": 0.3697,
    "c": 0.09278,
    "h": 273.9
  },
  "luminance": 0.04849
}

Semantic roles & 50–950 ramp

primary

#313A70

secondary

#A1975C

accent

#BE59CF

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #313A70

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

Preview Lab → · Contrast checker → · Palette generator →