#313B86#313B86

#313B86 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.8% C 0.125 H 273.4°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#313B86
RGB	rgb(49, 59, 134)
HSL	hsl(233, 46%, 36%)
HSV	hsv(233, 63%, 53%)
CMYK	cmyk(63.4%, 56%, 0%, 47.5%)
CIE-LAB	lab(28.12, 20.73, -43.45)
CIE-LCH	lch(28.12, 48.14, 295.50°)
OKLab	oklab(38.84% 0.0074 -0.1247)
OKLCH	oklch(38.84% 0.125 273.4)
XYZ	xyz(7.1322, 5.5015, 23.2357)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313B86 #867C31

analogous

#316586 #313B86 #513186

triadic

#313B86 #86313B #3B8631

tetradic

#313B86 #863165 #867C31 #318651

square

#313B86 #863165 #867C31 #318651

split-complementary

#313B86 #865131 #658631

monochromatic

#10142C #212759 #313B86 #414FB3 #6974C8

Accessibility & contrast

On white

10.00

#313B86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#313B86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313B86

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313B86	#FFFFFF	#000000	##FFFFFF
##313B86	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#064689

Deuteranopia (green-blind)

#003F84

Tritanopia (blue-blind)

#004D5A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #313b86;
/* rgb */ color: rgb(49, 59, 134);
/* oklch */ color: oklch(38.8% 0.125 273.4);

Tailwind

colors: {
  custom: {
    50: '#7270aa',
    500: '#313b86',
    950: '#000000',
  },
}

SCSS

$custom: #313b86;
$custom-light: #7270aa;
$custom-dark: #000000;

JSON

{
  "hex": "#313b86",
  "rgb": {
    "r": 49,
    "g": 59,
    "b": 134
  },
  "hsl": {
    "h": 232.941,
    "s": 46.448,
    "l": 35.882
  },
  "oklch": {
    "l": 0.38836,
    "c": 0.1249,
    "h": 273.4
  },
  "luminance": 0.05502
}

Semantic roles & 50–950 ramp

primary

#313B86

secondary

#B0A763

accent

#C752D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #313B86

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

Preview Lab → · Contrast checker → · Palette generator →