#313CB6#313CB6

#313CB6 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.2% C 0.190 H 271.6°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#313CB6
RGB	rgb(49, 60, 182)
HSL	hsl(235, 58%, 45%)
HSV	hsv(235, 73%, 71%)
CMYK	cmyk(73.1%, 67%, 0%, 28.6%)
CIE-LAB	lab(32.39, 37.43, -65.59)
CIE-LCH	lch(32.39, 75.52, 299.71°)
OKLab	oklab(43.24% 0.0053 -0.1897)
OKLCH	oklch(43.24% 0.19 271.6)
XYZ	xyz(11.3231, 7.2609, 45.0517)
Luminance	0.0726 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313CB6 #B6AB31

analogous

#317EB6 #313CB6 #6931B6

triadic

#313CB6 #B6313C #3CB631

tetradic

#313CB6 #B6317E #B6AB31 #31B669

square

#313CB6 #B6317E #B6AB31 #31B669

split-complementary

#313CB6 #B66931 #7EB631

monochromatic

#171C56 #242C86 #313CB6 #535ED1 #848BDE

Accessibility & contrast

On white

8.56

#313CB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#313CB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313CB6

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313CB6	#FFFFFF	#000000	##FFFFFF
##313CB6	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BA

Deuteranopia (green-blind)

#0046B4

Tritanopia (blue-blind)

#005D74

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #313cb6;
/* rgb */ color: rgb(49, 60, 182);
/* oklch */ color: oklch(43.2% 0.190 271.6);

Tailwind

colors: {
  custom: {
    50: '#7d72cd',
    500: '#313cb6',
    950: '#000000',
  },
}

SCSS

$custom: #313cb6;
$custom-light: #7d72cd;
$custom-dark: #000000;

JSON

{
  "hex": "#313cb6",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 182
  },
  "hsl": {
    "h": 235.038,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43241,
    "c": 0.18974,
    "h": 271.6
  },
  "luminance": 0.07262
}

Semantic roles & 50–950 ramp

primary

#313CB6

secondary

#C7C17C

accent

#D447E1

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #313CB6

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

Preview Lab → · Contrast checker → · Palette generator →