#313CBE#313CBE

#313CBE is a dark, vivid blue. Relative luminance 0.076; OKLCH L 44.0% C 0.200 H 271.3°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#313CBE
RGB	rgb(49, 60, 190)
HSL	hsl(235, 59%, 47%)
HSV	hsv(235, 74%, 75%)
CMYK	cmyk(74.2%, 68.4%, 0%, 25.5%)
CIE-LAB	lab(33.14, 40.24, -69.10)
CIE-LCH	lch(33.14, 79.96, 300.21°)
OKLab	oklab(44.01% 0.0045 -0.1999)
OKLCH	oklch(44.01% 0.2 271.3)
XYZ	xyz(12.1736, 7.6011, 49.5308)
Luminance	0.0760 (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

#313CBE #BEB331

analogous

#3183BE #313CBE #6D31BE

triadic

#313CBE #BE313C #3CBE31

tetradic

#313CBE #BE3183 #BEB331 #31BE6D

square

#313CBE #BE3183 #BEB331 #31BE6D

split-complementary

#313CBE #BE6D31 #83BE31

monochromatic

#181D5D #242D8D #313CBE #5862D4 #8990E1

Accessibility & contrast

On white

8.33

#313CBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#313CBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313CBE

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313CBE	#FFFFFF	#000000	##FFFFFF
##313CBE	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C2

Deuteranopia (green-blind)

#0047BC

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #313cbe;
/* rgb */ color: rgb(49, 60, 190);
/* oklch */ color: oklch(44.0% 0.200 271.3);

Tailwind

colors: {
  custom: {
    50: '#7f72d3',
    500: '#313cbe',
    950: '#000000',
  },
}

SCSS

$custom: #313cbe;
$custom-light: #7f72d3;
$custom-dark: #000000;

JSON

{
  "hex": "#313cbe",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 190
  },
  "hsl": {
    "h": 235.319,
    "s": 58.996,
    "l": 46.863
  },
  "oklch": {
    "l": 0.44007,
    "c": 0.19995,
    "h": 271.3
  },
  "luminance": 0.07602
}

Semantic roles & 50–950 ramp

primary

#313CBE

secondary

#CAC580

accent

#D646E2

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #313CBE

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

Preview Lab → · Contrast checker → · Palette generator →