#313BC4#313BC4

#313BC4 is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.4% C 0.209 H 271.2°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#313BC4
RGB	rgb(49, 59, 196)
HSL	hsl(236, 60%, 48%)
HSV	hsv(236, 75%, 77%)
CMYK	cmyk(75%, 69.9%, 0%, 23.1%)
CIE-LAB	lab(33.49, 42.91, -72.04)
CIE-LCH	lch(33.49, 83.85, 300.78°)
OKLab	oklab(44.43% 0.0044 -0.2085)
OKLCH	oklch(44.43% 0.209 271.2)
XYZ	xyz(12.7910, 7.7651, 53.0385)
Luminance	0.0777 (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

#313BC4 #C4BA31

analogous

#3185C4 #313BC4 #7031C4

triadic

#313BC4 #C4313B #3BC431

tetradic

#313BC4 #C43185 #C4BA31 #31C470

square

#313BC4 #C43185 #C4BA31 #31C470

split-complementary

#313BC4 #C47031 #85C431

monochromatic

#191E62 #252C93 #313BC4 #5C64D6 #8D93E2

Accessibility & contrast

On white

8.22

#313BC4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#313BC4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313BC4

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313BC4	#FFFFFF	#000000	##FFFFFF
##313BC4	1.00	8.22	2.55	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C8

Deuteranopia (green-blind)

#0048C1

Tritanopia (blue-blind)

#00617B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #313bc4;
/* rgb */ color: rgb(49, 59, 196);
/* oklch */ color: oklch(44.4% 0.209 271.2);

Tailwind

colors: {
  custom: {
    50: '#8072d7',
    500: '#313bc4',
    950: '#000000',
  },
}

SCSS

$custom: #313bc4;
$custom-light: #8072d7;
$custom-dark: #000000;

JSON

{
  "hex": "#313bc4",
  "rgb": {
    "r": 49,
    "g": 59,
    "b": 196
  },
  "hsl": {
    "h": 235.918,
    "s": 60,
    "l": 48.039
  },
  "oklch": {
    "l": 0.44434,
    "c": 0.20854,
    "h": 271.2
  },
  "luminance": 0.07766
}

Semantic roles & 50–950 ramp

primary

#313BC4

secondary

#CDC884

accent

#D845E3

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #313BC4

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

Preview Lab → · Contrast checker → · Palette generator →