#313EBC#313EBC

#313EBC is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.1% C 0.195 H 271.0°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#313EBC
RGB	rgb(49, 62, 188)
HSL	hsl(234, 59%, 46%)
HSV	hsv(234, 74%, 74%)
CMYK	cmyk(73.9%, 67%, 0%, 26.3%)
CIE-LAB	lab(33.41, 38.30, -67.47)
CIE-LCH	lch(33.41, 77.59, 299.58°)
OKLab	oklab(44.15% 0.0035 -0.1951)
OKLCH	oklch(44.15% 0.195 271)
XYZ	xyz(12.0633, 7.7278, 48.4231)
Luminance	0.0773 (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

#313EBC #BCAF31

analogous

#3184BC #313EBC #6931BC

triadic

#313EBC #BC313E #3EBC31

tetradic

#313EBC #BC3184 #BCAF31 #31BC69

square

#313EBC #BC3184 #BCAF31 #31BC69

split-complementary

#313EBC #BC6931 #84BC31

monochromatic

#181E5B #242E8B #313EBC #5763D3 #8890E0

Accessibility & contrast

On white

8.25

#313EBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#313EBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313EBC

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313EBC	#FFFFFF	#000000	##FFFFFF
##313EBC	1.00	8.25	2.55	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C0

Deuteranopia (green-blind)

#0048BA

Tritanopia (blue-blind)

#006078

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #313ebc;
/* rgb */ color: rgb(49, 62, 188);
/* oklch */ color: oklch(44.1% 0.195 271.0);

Tailwind

colors: {
  custom: {
    50: '#7e73d1',
    500: '#313ebc',
    950: '#000000',
  },
}

SCSS

$custom: #313ebc;
$custom-light: #7e73d1;
$custom-dark: #000000;

JSON

{
  "hex": "#313ebc",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 188
  },
  "hsl": {
    "h": 234.388,
    "s": 58.65,
    "l": 46.471
  },
  "oklch": {
    "l": 0.44148,
    "c": 0.19518,
    "h": 271
  },
  "luminance": 0.07729
}

Semantic roles & 50–950 ramp

primary

#313EBC

secondary

#CAC37F

accent

#D346E2

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0B0814

muted

#7C7B83

Preview Lab

Preview with #313EBC

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

Preview Lab → · Contrast checker → · Palette generator →