#313C7A#313C7A

#313C7A is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.1% C 0.105 H 272.9°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#313C7A
RGB	rgb(49, 60, 122)
HSL	hsl(231, 43%, 34%)
HSV	hsv(231, 60%, 48%)
CMYK	cmyk(59.8%, 50.8%, 0%, 52.2%)
CIE-LAB	lab(27.54, 15.67, -36.87)
CIE-LCH	lch(27.54, 40.06, 293.02°)
OKLab	oklab(38.13% 0.0053 -0.1053)
OKLCH	oklch(38.13% 0.105 272.9)
XYZ	xyz(6.3942, 5.2893, 19.0926)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313C7A #7A6F31

analogous

#31607A #313C7A #4A317A

triadic

#313C7A #7A313C #3C7A31

tetradic

#313C7A #7A3160 #7A6F31 #317A4A

square

#313C7A #7A3160 #7A6F31 #317A4A

split-complementary

#313C7A #7A4A31 #607A31

monochromatic

#0E1123 #1F274E #313C7A #4351A6 #6472C1

Accessibility & contrast

On white

10.20

#313C7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#313C7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313C7A

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313C7A	#FFFFFF	#000000	##FFFFFF
##313C7A	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D447C

Deuteranopia (green-blind)

#113E79

Tritanopia (blue-blind)

#014A55

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #313c7a;
/* rgb */ color: rgb(49, 60, 122);
/* oklch */ color: oklch(38.1% 0.105 272.9);

Tailwind

colors: {
  custom: {
    50: '#7071a1',
    500: '#313c7a',
    950: '#000000',
  },
}

SCSS

$custom: #313c7a;
$custom-light: #7071a1;
$custom-dark: #000000;

JSON

{
  "hex": "#313c7a",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 122
  },
  "hsl": {
    "h": 230.959,
    "s": 42.69,
    "l": 33.529
  },
  "oklch": {
    "l": 0.38129,
    "c": 0.10544,
    "h": 272.9
  },
  "luminance": 0.0529
}

Semantic roles & 50–950 ramp

primary

#313C7A

secondary

#A89D5E

accent

#C055D2

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08070F

muted

#7B7A7E

Preview Lab

Preview with #313C7A

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

Preview Lab → · Contrast checker → · Palette generator →