#313AB6#313AB6

#313AB6 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.9% C 0.192 H 271.9°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#313AB6
RGB	rgb(49, 58, 182)
HSL	hsl(236, 58%, 45%)
HSV	hsv(236, 73%, 71%)
CMYK	cmyk(73.1%, 68.1%, 0%, 28.6%)
CIE-LAB	lab(31.93, 38.67, -66.35)
CIE-LCH	lch(31.93, 76.80, 300.24°)
OKLab	oklab(42.91% 0.0065 -0.1919)
OKLCH	oklch(42.91% 0.192 271.9)
XYZ	xyz(11.2203, 7.0553, 45.0174)
Luminance	0.0706 (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

#313AB6 #B6AD31

analogous

#317CB6 #313AB6 #6B31B6

triadic

#313AB6 #B6313A #3AB631

tetradic

#313AB6 #B6317C #B6AD31 #31B66B

square

#313AB6 #B6317C #B6AD31 #31B66B

split-complementary

#313AB6 #B66B31 #7CB631

monochromatic

#171B56 #242B86 #313AB6 #535CD1 #848ADE

Accessibility & contrast

On white

8.71

#313AB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#313AB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313AB6

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313AB6	#FFFFFF	#000000	##FFFFFF
##313AB6	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BA

Deuteranopia (green-blind)

#0045B4

Tritanopia (blue-blind)

#005C73

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #313ab6;
/* rgb */ color: rgb(49, 58, 182);
/* oklch */ color: oklch(42.9% 0.192 271.9);

Tailwind

colors: {
  custom: {
    50: '#7d70cd',
    500: '#313ab6',
    950: '#000000',
  },
}

SCSS

$custom: #313ab6;
$custom-light: #7d70cd;
$custom-dark: #000000;

JSON

{
  "hex": "#313ab6",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 182
  },
  "hsl": {
    "h": 235.94,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.42906,
    "c": 0.192,
    "h": 271.9
  },
  "luminance": 0.07056
}

Semantic roles & 50–950 ramp

primary

#313AB6

secondary

#C7C27C

accent

#D647E1

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #313AB6

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

Preview Lab → · Contrast checker → · Palette generator →