#313BC5#313BC5

#313BC5 is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.5% C 0.210 H 271.2°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#313BC5
RGB	rgb(49, 59, 197)
HSL	hsl(236, 60%, 48%)
HSV	hsv(236, 75%, 77%)
CMYK	cmyk(75.1%, 70.1%, 0%, 22.7%)
CIE-LAB	lab(33.59, 43.26, -72.47)
CIE-LCH	lch(33.59, 84.39, 300.83°)
OKLab	oklab(44.53% 0.0042 -0.2097)
OKLCH	oklch(44.53% 0.21 271.2)
XYZ	xyz(12.9052, 7.8107, 53.6400)
Luminance	0.0781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.50

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313BC5 #C5BB31

analogous

#3185C5 #313BC5 #7131C5

triadic

#313BC5 #C5313B #3BC531

tetradic

#313BC5 #C53185 #C5BB31 #31C571

square

#313BC5 #C53185 #C5BB31 #31C571

split-complementary

#313BC5 #C57131 #85C531

monochromatic

#191E63 #252C94 #313BC5 #5D65D7 #8E93E3

Accessibility & contrast

On white

8.20

#313BC5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#313BC5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313BC5

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313BC5	#FFFFFF	#000000	##FFFFFF
##313BC5	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C9

Deuteranopia (green-blind)

#0048C2

Tritanopia (blue-blind)

#00617C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #313bc5;
/* rgb */ color: rgb(49, 59, 197);
/* oklch */ color: oklch(44.5% 0.210 271.2);

Tailwind

colors: {
  custom: {
    50: '#8072d8',
    500: '#313bc5',
    950: '#000000',
  },
}

SCSS

$custom: #313bc5;
$custom-light: #8072d8;
$custom-dark: #000000;

JSON

{
  "hex": "#313bc5",
  "rgb": {
    "r": 49,
    "g": 59,
    "b": 197
  },
  "hsl": {
    "h": 235.946,
    "s": 60.163,
    "l": 48.235
  },
  "oklch": {
    "l": 0.44533,
    "c": 0.20977,
    "h": 271.2
  },
  "luminance": 0.07812
}

Semantic roles & 50–950 ramp

primary

#313BC5

secondary

#CDC885

accent

#D944E3

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #313BC5

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

Preview Lab → · Contrast checker → · Palette generator →