#313DBE#313DBE

#313DBE is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.2% C 0.199 H 271.1°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#313DBE
RGB	rgb(49, 61, 190)
HSL	hsl(235, 59%, 47%)
HSV	hsv(235, 74%, 75%)
CMYK	cmyk(74.2%, 67.9%, 0%, 25.5%)
CIE-LAB	lab(33.36, 39.62, -68.72)
CIE-LCH	lch(33.36, 79.33, 299.97°)
OKLab	oklab(44.17% 0.0039 -0.1988)
OKLCH	oklch(44.17% 0.199 271.1)
XYZ	xyz(12.2265, 7.7069, 49.5484)
Luminance	0.0771 (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

#313DBE #BEB231

analogous

#3183BE #313DBE #6C31BE

triadic

#313DBE #BE313D #3DBE31

tetradic

#313DBE #BE3183 #BEB231 #31BE6C

square

#313DBE #BE3183 #BEB231 #31BE6C

split-complementary

#313DBE #BE6C31 #83BE31

monochromatic

#181E5D #242D8D #313DBE #5863D4 #8990E1

Accessibility & contrast

On white

8.26

#313DBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#313DBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313DBE

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313DBE	#FFFFFF	#000000	##FFFFFF
##313DBE	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C2

Deuteranopia (green-blind)

#0048BC

Tritanopia (blue-blind)

#006078

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #313dbe;
/* rgb */ color: rgb(49, 61, 190);
/* oklch */ color: oklch(44.2% 0.199 271.1);

Tailwind

colors: {
  custom: {
    50: '#7f73d3',
    500: '#313dbe',
    950: '#000000',
  },
}

SCSS

$custom: #313dbe;
$custom-light: #7f73d3;
$custom-dark: #000000;

JSON

{
  "hex": "#313dbe",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 190
  },
  "hsl": {
    "h": 234.894,
    "s": 58.996,
    "l": 46.863
  },
  "oklch": {
    "l": 0.44172,
    "c": 0.19885,
    "h": 271.1
  },
  "luminance": 0.07708
}

Semantic roles & 50–950 ramp

primary

#313DBE

secondary

#CAC480

accent

#D546E2

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #313DBE

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

Preview Lab → · Contrast checker → · Palette generator →