#313FC0#313FC0

#313FC0 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.7% C 0.199 H 270.8°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#313FC0
RGB	rgb(49, 63, 192)
HSL	hsl(234, 59%, 47%)
HSV	hsv(234, 74%, 75%)
CMYK	cmyk(74.5%, 67.2%, 0%, 24.7%)
CIE-LAB	lab(34.01, 39.09, -68.84)
CIE-LCH	lch(34.01, 79.16, 299.59°)
OKLab	oklab(44.7% 0.0026 -0.1991)
OKLCH	oklch(44.7% 0.199 270.8)
XYZ	xyz(12.5553, 8.0124, 50.7438)
Luminance	0.0801 (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

#313FC0 #C0B231

analogous

#3186C0 #313FC0 #6B31C0

triadic

#313FC0 #C0313F #3FC031

tetradic

#313FC0 #C03186 #C0B231 #31C06B

square

#313FC0 #C03186 #C0B231 #31C06B

split-complementary

#313FC0 #C06B31 #86C031

monochromatic

#181F5E #252F8F #313FC0 #5966D5 #8A93E1

Accessibility & contrast

On white

8.07

#313FC0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#313FC0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313FC0

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313FC0	#FFFFFF	#000000	##FFFFFF
##313FC0	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C4

Deuteranopia (green-blind)

#0049BE

Tritanopia (blue-blind)

#00627A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #313fc0;
/* rgb */ color: rgb(49, 63, 192);
/* oklch */ color: oklch(44.7% 0.199 270.8);

Tailwind

colors: {
  custom: {
    50: '#7f74d4',
    500: '#313fc0',
    950: '#000000',
  },
}

SCSS

$custom: #313fc0;
$custom-light: #7f74d4;
$custom-dark: #000000;

JSON

{
  "hex": "#313fc0",
  "rgb": {
    "r": 49,
    "g": 63,
    "b": 192
  },
  "hsl": {
    "h": 234.126,
    "s": 59.336,
    "l": 47.255
  },
  "oklch": {
    "l": 0.44696,
    "c": 0.19916,
    "h": 270.8
  },
  "luminance": 0.08014
}

Semantic roles & 50–950 ramp

primary

#313FC0

secondary

#CBC482

accent

#D345E3

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #313FC0

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

Preview Lab → · Contrast checker → · Palette generator →