#313E66#313E66

#313E66 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.2% C 0.071 H 269.1°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#313E66
RGB	rgb(49, 62, 102)
HSL	hsl(225, 35%, 30%)
HSV	hsv(225, 52%, 40%)
CMYK	cmyk(52%, 39.2%, 0%, 60%)
CIE-LAB	lab(26.90, 7.16, -25.17)
CIE-LCH	lch(26.90, 26.17, 285.87°)
OKLab	oklab(37.23% -0.0011 -0.071)
OKLCH	oklch(37.23% 0.071 269.1)
XYZ	xyz(5.3867, 5.0572, 13.2601)
Luminance	0.0506 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E66 #665931

analogous

#315966 #313E66 #3F3166

triadic

#313E66 #66313E #3E6631

tetradic

#313E66 #663159 #665931 #31663F

square

#313E66 #663159 #665931 #31663F

split-complementary

#313E66 #663F31 #596631

monochromatic

#0A0D15 #1D253D #313E66 #45578F #5F74B2

Accessibility & contrast

On white

10.44

#313E66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#313E66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E66

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E66	#FFFFFF	#000000	##FFFFFF
##313E66	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4268

Deuteranopia (green-blind)

#293D65

Tritanopia (blue-blind)

#1B464D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #313e66;
/* rgb */ color: rgb(49, 62, 102);
/* oklch */ color: oklch(37.2% 0.071 269.1);

Tailwind

colors: {
  custom: {
    50: '#6d7392',
    500: '#313e66',
    950: '#000000',
  },
}

SCSS

$custom: #313e66;
$custom-light: #6d7392;
$custom-dark: #000000;

JSON

{
  "hex": "#313e66",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 102
  },
  "hsl": {
    "h": 225.283,
    "s": 35.099,
    "l": 29.608
  },
  "oklch": {
    "l": 0.37232,
    "c": 0.07103,
    "h": 269.1
  },
  "luminance": 0.05058
}

Semantic roles & 50–950 ramp

primary

#313E66

secondary

#97895C

accent

#B05DCB

background

#F6F6F8

surface

#ECECF0

border

#C7C7CB

text

#07080D

muted

#7A7B7D

Preview Lab

Preview with #313E66

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

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