#313D69#313D69

#313D69 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.2% C 0.077 H 270.7°. Best body text is #FFFFFF at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#313D69
RGB	rgb(49, 61, 105)
HSL	hsl(227, 36%, 30%)
HSV	hsv(227, 53%, 41%)
CMYK	cmyk(53.3%, 41.9%, 0%, 58.8%)
CIE-LAB	lab(26.76, 8.89, -27.31)
CIE-LCH	lch(26.76, 28.72, 288.02°)
OKLab	oklab(37.19% 0.001 -0.0773)
OKLCH	oklch(37.19% 0.077 270.7)
XYZ	xyz(5.4843, 5.0100, 14.0399)
Luminance	0.0501 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313D69 #695D31

analogous

#315969 #313D69 #413169

triadic

#313D69 #69313D #3D6931

tetradic

#313D69 #693159 #695D31 #316941

square

#313D69 #693159 #695D31 #316941

split-complementary

#313D69 #694131 #596931

monochromatic

#0A0D16 #1E253F #313D69 #445593 #6072B5

Accessibility & contrast

On white

10.49

#313D69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#313D69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313D69

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313D69	#FFFFFF	#000000	##FFFFFF
##313D69	1.00	10.49	2.00	10.49
#FFFFFF	10.49	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C426B

Deuteranopia (green-blind)

#263D68

Tritanopia (blue-blind)

#19464E

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #313d69;
/* rgb */ color: rgb(49, 61, 105);
/* oklch */ color: oklch(37.2% 0.077 270.7);

Tailwind

colors: {
  custom: {
    50: '#6d7294',
    500: '#313d69',
    950: '#000000',
  },
}

SCSS

$custom: #313d69;
$custom-light: #6d7294;
$custom-dark: #000000;

JSON

{
  "hex": "#313d69",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 105
  },
  "hsl": {
    "h": 227.143,
    "s": 36.364,
    "l": 30.196
  },
  "oklch": {
    "l": 0.37185,
    "c": 0.07728,
    "h": 270.7
  },
  "luminance": 0.0501
}

Semantic roles & 50–950 ramp

primary

#313D69

secondary

#9A8D5C

accent

#B45BCC

background

#F6F6F9

surface

#ECECF1

border

#C7C7CB

text

#07070D

muted

#7A7A7E

Preview Lab

Preview with #313D69

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

Preview Lab → · Contrast checker → · Palette generator →