#313C6F#313C6F

#313C6F is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.4% C 0.088 H 272.3°. Best body text is #FFFFFF at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#313C6F
RGB	rgb(49, 60, 111)
HSL	hsl(229, 39%, 31%)
HSV	hsv(229, 56%, 44%)
CMYK	cmyk(55.9%, 45.9%, 0%, 56.5%)
CIE-LAB	lab(26.83, 11.70, -31.05)
CIE-LCH	lch(26.83, 33.18, 290.64°)
OKLab	oklab(37.35% 0.0036 -0.0882)
OKLCH	oklch(37.35% 0.088 272.3)
XYZ	xyz(5.7508, 5.0320, 15.7041)
Luminance	0.0503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313C6F #6F6431

analogous

#315B6F #313C6F #45316F

triadic

#313C6F #6F313C #3C6F31

tetradic

#313C6F #6F315B #6F6431 #316F45

square

#313C6F #6F315B #6F6431 #316F45

split-complementary

#313C6F #6F4531 #5B6F31

monochromatic

#0C0E1A #1E2545 #313C6F #445399 #6171B9

Accessibility & contrast

On white

10.47

#313C6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#313C6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313C6F

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313C6F	#FFFFFF	#000000	##FFFFFF
##313C6F	1.00	10.47	2.01	10.47
#FFFFFF	10.47	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264271

Deuteranopia (green-blind)

#1F3D6E

Tritanopia (blue-blind)

#134750

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #313c6f;
/* rgb */ color: rgb(49, 60, 111);
/* oklch */ color: oklch(37.4% 0.088 272.3);

Tailwind

colors: {
  custom: {
    50: '#6e7198',
    500: '#313c6f',
    950: '#000000',
  },
}

SCSS

$custom: #313c6f;
$custom-light: #6e7198;
$custom-dark: #000000;

JSON

{
  "hex": "#313c6f",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 111
  },
  "hsl": {
    "h": 229.355,
    "s": 38.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37351,
    "c": 0.08828,
    "h": 272.3
  },
  "luminance": 0.05032
}

Semantic roles & 50–950 ramp

primary

#313C6F

secondary

#A0945C

accent

#BA59CF

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #313C6F

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

Preview Lab → · Contrast checker → · Palette generator →