#313CBA#313CBA

#313CBA is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.6% C 0.195 H 271.4°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#313CBA
RGB	rgb(49, 60, 186)
HSL	hsl(235, 58%, 46%)
HSV	hsv(235, 74%, 73%)
CMYK	cmyk(73.7%, 67.7%, 0%, 27.1%)
CIE-LAB	lab(32.76, 38.84, -67.35)
CIE-LCH	lch(32.76, 77.75, 299.97°)
OKLab	oklab(43.62% 0.0049 -0.1948)
OKLCH	oklch(43.62% 0.195 271.4)
XYZ	xyz(11.7424, 7.4286, 47.2599)
Luminance	0.0743 (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

#313CBA #BAAF31

analogous

#3180BA #313CBA #6A31BA

triadic

#313CBA #BA313C #3CBA31

tetradic

#313CBA #BA3180 #BAAF31 #31BA6A

square

#313CBA #BA3180 #BAAF31 #31BA6A

split-complementary

#313CBA #BA6A31 #80BA31

monochromatic

#171D59 #242C8A #313CBA #5660D2 #868DDF

Accessibility & contrast

On white

8.45

#313CBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#313CBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313CBA

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313CBA	#FFFFFF	#000000	##FFFFFF
##313CBA	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BE

Deuteranopia (green-blind)

#0047B8

Tritanopia (blue-blind)

#005E76

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #313cba;
/* rgb */ color: rgb(49, 60, 186);
/* oklch */ color: oklch(43.6% 0.195 271.4);

Tailwind

colors: {
  custom: {
    50: '#7e72d0',
    500: '#313cba',
    950: '#000000',
  },
}

SCSS

$custom: #313cba;
$custom-light: #7e72d0;
$custom-dark: #000000;

JSON

{
  "hex": "#313cba",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 186
  },
  "hsl": {
    "h": 235.182,
    "s": 58.298,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43622,
    "c": 0.19487,
    "h": 271.4
  },
  "luminance": 0.0743
}

Semantic roles & 50–950 ramp

primary

#313CBA

secondary

#C9C37E

accent

#D546E2

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #313CBA

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

Preview Lab → · Contrast checker → · Palette generator →