#313E79#313E79

#313E79 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.5% C 0.101 H 271.6°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#313E79
RGB	rgb(49, 62, 121)
HSL	hsl(229, 42%, 33%)
HSV	hsv(229, 60%, 47%)
CMYK	cmyk(59.5%, 48.8%, 0%, 52.5%)
CIE-LAB	lab(28.06, 13.93, -35.42)
CIE-LCH	lch(28.06, 38.06, 291.48°)
OKLab	oklab(38.5% 0.0028 -0.101)
OKLCH	oklch(38.5% 0.101 271.6)
XYZ	xyz(6.4393, 5.4782, 18.8035)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E79 #796C31

analogous

#316279 #313E79 #483179

triadic

#313E79 #79313E #3E7931

tetradic

#313E79 #793162 #796C31 #317948

square

#313E79 #793162 #796C31 #317948

split-complementary

#313E79 #794831 #627931

monochromatic

#0E1122 #1F284D #313E79 #4354A5 #6475C0

Accessibility & contrast

On white

10.02

#313E79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#313E79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E79

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E79	#FFFFFF	#000000	##FFFFFF
##313E79	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22457B

Deuteranopia (green-blind)

#183F78

Tritanopia (blue-blind)

#024B55

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #313e79;
/* rgb */ color: rgb(49, 62, 121);
/* oklch */ color: oklch(38.5% 0.101 271.6);

Tailwind

colors: {
  custom: {
    50: '#7073a0',
    500: '#313e79',
    950: '#000000',
  },
}

SCSS

$custom: #313e79;
$custom-light: #7073a0;
$custom-dark: #000000;

JSON

{
  "hex": "#313e79",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 121
  },
  "hsl": {
    "h": 229.167,
    "s": 42.353,
    "l": 33.333
  },
  "oklch": {
    "l": 0.38497,
    "c": 0.10106,
    "h": 271.6
  },
  "luminance": 0.05479
}

Semantic roles & 50–950 ramp

primary

#313E79

secondary

#A89A5E

accent

#BC56D2

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08080F

muted

#7B7B7E

Preview Lab

Preview with #313E79

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

Preview Lab → · Contrast checker → · Palette generator →