#313BBA#313BBA

#313BBA is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.5% C 0.196 H 271.6°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#313BBA
RGB	rgb(49, 59, 186)
HSL	hsl(236, 58%, 46%)
HSV	hsv(236, 74%, 73%)
CMYK	cmyk(73.7%, 68.3%, 0%, 27.1%)
CIE-LAB	lab(32.54, 39.45, -67.73)
CIE-LCH	lch(32.54, 78.38, 300.22°)
OKLab	oklab(43.46% 0.0055 -0.1959)
OKLCH	oklch(43.46% 0.196 271.6)
XYZ	xyz(11.6905, 7.3249, 47.2426)
Luminance	0.0733 (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

#313BBA #BAB031

analogous

#317FBA #313BBA #6B31BA

triadic

#313BBA #BA313B #3BBA31

tetradic

#313BBA #BA317F #BAB031 #31BA6B

square

#313BBA #BA317F #BAB031 #31BA6B

split-complementary

#313BBA #BA6B31 #7FBA31

monochromatic

#171C59 #242C8A #313BBA #565FD2 #868DDF

Accessibility & contrast

On white

8.52

#313BBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#313BBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313BBA

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313BBA	#FFFFFF	#000000	##FFFFFF
##313BBA	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BE

Deuteranopia (green-blind)

#0046B8

Tritanopia (blue-blind)

#005E76

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #313bba;
/* rgb */ color: rgb(49, 59, 186);
/* oklch */ color: oklch(43.5% 0.196 271.6);

Tailwind

colors: {
  custom: {
    50: '#7e71d0',
    500: '#313bba',
    950: '#000000',
  },
}

SCSS

$custom: #313bba;
$custom-light: #7e71d0;
$custom-dark: #000000;

JSON

{
  "hex": "#313bba",
  "rgb": {
    "r": 49,
    "g": 59,
    "b": 186
  },
  "hsl": {
    "h": 235.62,
    "s": 58.298,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43457,
    "c": 0.19599,
    "h": 271.6
  },
  "luminance": 0.07326
}

Semantic roles & 50–950 ramp

primary

#313BBA

secondary

#C9C37E

accent

#D646E2

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #313BBA

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

Preview Lab → · Contrast checker → · Palette generator →