#313A73#313A73

#313A73 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.2% C 0.097 H 274.0°. Best body text is #FFFFFF at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#313A73
RGB	rgb(49, 58, 115)
HSL	hsl(232, 40%, 32%)
HSV	hsv(232, 57%, 45%)
CMYK	cmyk(57.4%, 49.6%, 0%, 54.9%)
CIE-LAB	lab(26.50, 14.50, -34.12)
CIE-LCH	lch(26.50, 37.08, 293.03°)
OKLab	oklab(37.18% 0.0067 -0.0973)
OKLCH	oklch(37.18% 0.097 274)
XYZ	xyz(5.8732, 4.9165, 16.8558)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313A73 #736A31

analogous

#315B73 #313A73 #493173

triadic

#313A73 #73313A #3A7331

tetradic

#313A73 #73315B #736A31 #317349

square

#313A73 #73315B #736A31 #317349

split-complementary

#313A73 #734931 #5B7331

monochromatic

#0C0F1D #1F2448 #313A73 #43509E #626EBC

Accessibility & contrast

On white

10.59

#313A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#313A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313A73

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313A73	#FFFFFF	#000000	##FFFFFF
##313A73	1.00	10.59	1.98	10.59
#FFFFFF	10.59	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204275

Deuteranopia (green-blind)

#173C72

Tritanopia (blue-blind)

#0F4751

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #313a73;
/* rgb */ color: rgb(49, 58, 115);
/* oklch */ color: oklch(37.2% 0.097 274.0);

Tailwind

colors: {
  custom: {
    50: '#6f6f9c',
    500: '#313a73',
    950: '#000000',
  },
}

SCSS

$custom: #313a73;
$custom-light: #6f6f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#313a73",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 115
  },
  "hsl": {
    "h": 231.818,
    "s": 40.244,
    "l": 32.157
  },
  "oklch": {
    "l": 0.37183,
    "c": 0.09749,
    "h": 274
  },
  "luminance": 0.04917
}

Semantic roles & 50–950 ramp

primary

#313A73

secondary

#A49A5C

accent

#C058D0

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#08070E

muted

#7B7A7E

Preview Lab

Preview with #313A73

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

Preview Lab → · Contrast checker → · Palette generator →