#313B84#313B84

#313B84 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.7% C 0.122 H 273.4°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#313B84
RGB	rgb(49, 59, 132)
HSL	hsl(233, 46%, 35%)
HSV	hsv(233, 63%, 52%)
CMYK	cmyk(62.9%, 55.3%, 0%, 48.2%)
CIE-LAB	lab(27.97, 20.00, -42.45)
CIE-LCH	lch(27.97, 46.92, 295.23°)
OKLab	oklab(38.68% 0.0073 -0.1217)
OKLCH	oklch(38.68% 0.122 273.4)
XYZ	xyz(6.9941, 5.4463, 22.5080)
Luminance	0.0545 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313B84 #847A31

analogous

#316484 #313B84 #503184

triadic

#313B84 #84313B #3B8431

tetradic

#313B84 #843164 #847A31 #318450

square

#313B84 #843164 #847A31 #318450

split-complementary

#313B84 #845031 #648431

monochromatic

#10132B #202757 #313B84 #424FB1 #6874C7

Accessibility & contrast

On white

10.05

#313B84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#313B84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313B84

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313B84	#FFFFFF	#000000	##FFFFFF
##313B84	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B4687

Deuteranopia (green-blind)

#003F82

Tritanopia (blue-blind)

#004C59

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #313b84;
/* rgb */ color: rgb(49, 59, 132);
/* oklch */ color: oklch(38.7% 0.122 273.4);

Tailwind

colors: {
  custom: {
    50: '#7270a8',
    500: '#313b84',
    950: '#000000',
  },
}

SCSS

$custom: #313b84;
$custom-light: #7270a8;
$custom-dark: #000000;

JSON

{
  "hex": "#313b84",
  "rgb": {
    "r": 49,
    "g": 59,
    "b": 132
  },
  "hsl": {
    "h": 232.771,
    "s": 45.856,
    "l": 35.49
  },
  "oklch": {
    "l": 0.38677,
    "c": 0.12195,
    "h": 273.4
  },
  "luminance": 0.05447
}

Semantic roles & 50–950 ramp

primary

#313B84

secondary

#AEA562

accent

#C652D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #313B84

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

Preview Lab → · Contrast checker → · Palette generator →