#313BB6#313BB6

#313BB6 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.1% C 0.191 H 271.8°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#313BB6
RGB	rgb(49, 59, 182)
HSL	hsl(235, 58%, 45%)
HSV	hsv(235, 73%, 71%)
CMYK	cmyk(73.1%, 67.6%, 0%, 28.6%)
CIE-LAB	lab(32.16, 38.05, -65.98)
CIE-LCH	lch(32.16, 76.16, 299.98°)
OKLab	oklab(43.07% 0.0059 -0.1908)
OKLCH	oklch(43.07% 0.191 271.8)
XYZ	xyz(11.2712, 7.1571, 45.0344)
Luminance	0.0716 (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

#313BB6 #B6AC31

analogous

#317DB6 #313BB6 #6A31B6

triadic

#313BB6 #B6313B #3BB631

tetradic

#313BB6 #B6317D #B6AC31 #31B66A

square

#313BB6 #B6317D #B6AC31 #31B66A

split-complementary

#313BB6 #B66A31 #7DB631

monochromatic

#171C56 #242B86 #313BB6 #535DD1 #848ADE

Accessibility & contrast

On white

8.64

#313BB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#313BB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313BB6

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313BB6	#FFFFFF	#000000	##FFFFFF
##313BB6	1.00	8.64	2.43	8.64
#FFFFFF	8.64	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BA

Deuteranopia (green-blind)

#0045B4

Tritanopia (blue-blind)

#005C73

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #313bb6;
/* rgb */ color: rgb(49, 59, 182);
/* oklch */ color: oklch(43.1% 0.191 271.8);

Tailwind

colors: {
  custom: {
    50: '#7d71cd',
    500: '#313bb6',
    950: '#000000',
  },
}

SCSS

$custom: #313bb6;
$custom-light: #7d71cd;
$custom-dark: #000000;

JSON

{
  "hex": "#313bb6",
  "rgb": {
    "r": 49,
    "g": 59,
    "b": 182
  },
  "hsl": {
    "h": 235.489,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43072,
    "c": 0.19087,
    "h": 271.8
  },
  "luminance": 0.07158
}

Semantic roles & 50–950 ramp

primary

#313BB6

secondary

#C7C17C

accent

#D547E1

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #313BB6

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

Preview Lab → · Contrast checker → · Palette generator →