#313E64#313E64

#313E64 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.1% C 0.068 H 268.6°. Best body text is #FFFFFF at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#313E64
RGB	rgb(49, 62, 100)
HSL	hsl(225, 34%, 29%)
HSV	hsv(225, 51%, 39%)
CMYK	cmyk(51%, 38%, 0%, 60.8%)
CIE-LAB	lab(26.79, 6.46, -24.06)
CIE-LCH	lch(26.79, 24.92, 285.04°)
OKLab	oklab(37.11% -0.0016 -0.0678)
OKLCH	oklch(37.11% 0.068 268.6)
XYZ	xyz(5.2888, 5.0180, 12.7440)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E64 #645731

analogous

#315864 #313E64 #3E3164

triadic

#313E64 #64313E #3E6431

tetradic

#313E64 #643158 #645731 #31643E

square

#313E64 #643158 #645731 #31643E

split-complementary

#313E64 #643E31 #586431

monochromatic

#0A0D15 #1D253B #313E64 #45578D #5F74B1

Accessibility & contrast

On white

10.48

#313E64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#313E64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E64

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E64	#FFFFFF	#000000	##FFFFFF
##313E64	1.00	10.48	2.00	10.48
#FFFFFF	10.48	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304266

Deuteranopia (green-blind)

#2B3D63

Tritanopia (blue-blind)

#1D464C

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #313e64;
/* rgb */ color: rgb(49, 62, 100);
/* oklch */ color: oklch(37.1% 0.068 268.6);

Tailwind

colors: {
  custom: {
    50: '#6c7390',
    500: '#313e64',
    950: '#000000',
  },
}

SCSS

$custom: #313e64;
$custom-light: #6c7390;
$custom-dark: #000000;

JSON

{
  "hex": "#313e64",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 100
  },
  "hsl": {
    "h": 224.706,
    "s": 34.228,
    "l": 29.216
  },
  "oklch": {
    "l": 0.3711,
    "c": 0.06781,
    "h": 268.6
  },
  "luminance": 0.05018
}

Semantic roles & 50–950 ramp

primary

#313E64

secondary

#95875C

accent

#AF5DCA

background

#F6F6F8

surface

#ECECF0

border

#C7C7CB

text

#07080C

muted

#7A7B7D

Preview Lab

Preview with #313E64

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

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