#313DA0#313DA0

#313DA0 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.4% C 0.159 H 272.1°. Best body text is #FFFFFF at 9.11:1 contrast (WCAG AA passes).

Color values

HEX	#313DA0
RGB	rgb(49, 61, 160)
HSL	hsl(234, 53%, 41%)
HSV	hsv(234, 69%, 63%)
CMYK	cmyk(69.4%, 61.9%, 0%, 37.3%)
CIE-LAB	lab(30.71, 28.90, -55.19)
CIE-LCH	lch(30.71, 62.30, 297.64°)
OKLab	oklab(41.41% 0.0059 -0.1592)
OKLCH	oklch(41.41% 0.159 272.1)
XYZ	xyz(9.2784, 6.5276, 34.0219)
Luminance	0.0653 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313DA0 #A09431

analogous

#3174A0 #313DA0 #5D31A0

triadic

#313DA0 #A0313D #3DA031

tetradic

#313DA0 #A03174 #A09431 #31A05D

square

#313DA0 #A03174 #A09431 #31A05D

split-complementary

#313DA0 #A05D31 #74A031

monochromatic

#141942 #232B71 #313DA0 #4755C7 #7681D5

Accessibility & contrast

On white

9.11

#313DA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#313DA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313DA0

9.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313DA0	#FFFFFF	#000000	##FFFFFF
##313DA0	1.00	9.11	2.31	9.11
#FFFFFF	9.11	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA3

Deuteranopia (green-blind)

#00439E

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #313da0;
/* rgb */ color: rgb(49, 61, 160);
/* oklch */ color: oklch(41.4% 0.159 272.1);

Tailwind

colors: {
  custom: {
    50: '#7872bd',
    500: '#313da0',
    950: '#000000',
  },
}

SCSS

$custom: #313da0;
$custom-light: #7872bd;
$custom-dark: #000000;

JSON

{
  "hex": "#313da0",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 160
  },
  "hsl": {
    "h": 233.514,
    "s": 53.11,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41409,
    "c": 0.15927,
    "h": 272.1
  },
  "luminance": 0.06529
}

Semantic roles & 50–950 ramp

primary

#313DA0

secondary

#BDB570

accent

#CD4BDD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #313DA0

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

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