#313E6F#313E6F

#313E6F is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.8% C 0.085 H 270.7°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#313E6F
RGB	rgb(49, 62, 111)
HSL	hsl(227, 39%, 31%)
HSV	hsv(227, 56%, 44%)
CMYK	cmyk(55.9%, 44.1%, 0%, 56.5%)
CIE-LAB	lab(27.42, 10.33, -30.10)
CIE-LCH	lch(27.42, 31.82, 288.94°)
OKLab	oklab(37.81% 0.001 -0.0854)
OKLCH	oklch(37.81% 0.085 270.7)
XYZ	xyz(5.8576, 5.2455, 15.7397)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E6F #6F6231

analogous

#315D6F #313E6F #43316F

triadic

#313E6F #6F313E #3E6F31

tetradic

#313E6F #6F315D #6F6231 #316F43

square

#313E6F #6F315D #6F6231 #316F43

split-complementary

#313E6F #6F4331 #5D6F31

monochromatic

#0C0F1A #1E2645 #313E6F #445699 #6174B9

Accessibility & contrast

On white

10.25

#313E6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#313E6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E6F

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E6F	#FFFFFF	#000000	##FFFFFF
##313E6F	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A4471

Deuteranopia (green-blind)

#233E6E

Tritanopia (blue-blind)

#134951

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #313e6f;
/* rgb */ color: rgb(49, 62, 111);
/* oklch */ color: oklch(37.8% 0.085 270.7);

Tailwind

colors: {
  custom: {
    50: '#6e7398',
    500: '#313e6f',
    950: '#000000',
  },
}

SCSS

$custom: #313e6f;
$custom-light: #6e7398;
$custom-dark: #000000;

JSON

{
  "hex": "#313e6f",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 111
  },
  "hsl": {
    "h": 227.419,
    "s": 38.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37808,
    "c": 0.08542,
    "h": 270.7
  },
  "luminance": 0.05246
}

Semantic roles & 50–950 ramp

primary

#313E6F

secondary

#A0925C

accent

#B659CF

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #313E6F

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

Preview Lab → · Contrast checker → · Palette generator →