#31348F#31348F

#31348F is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.2% C 0.147 H 275.5°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#31348F
RGB	rgb(49, 52, 143)
HSL	hsl(238, 49%, 38%)
HSV	hsv(238, 66%, 56%)
CMYK	cmyk(65.7%, 63.6%, 0%, 43.9%)
CIE-LAB	lab(26.99, 28.67, -50.85)
CIE-LCH	lch(26.99, 58.38, 299.41°)
OKLab	oklab(38.23% 0.0141 -0.1465)
OKLCH	oklch(38.23% 0.147 275.5)
XYZ	xyz(7.4509, 5.0915, 26.5714)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31348F #8F8C31

analogous

#31638F #31348F #5D318F

triadic

#31348F #8F3134 #348F31

tetradic

#31348F #8F3163 #8F8C31 #318F5D

square

#31348F #8F3163 #8F8C31 #318F5D

split-complementary

#31348F #8F5D31 #638F31

monochromatic

#121334 #212361 #31348F #4145BD #6D70CD

Accessibility & contrast

On white

10.40

#31348F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#31348F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31348F

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31348F	#FFFFFF	#000000	##FFFFFF
##31348F	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004492

Deuteranopia (green-blind)

#003C8D

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #31348f;
/* rgb */ color: rgb(49, 52, 143);
/* oklch */ color: oklch(38.2% 0.147 275.5);

Tailwind

colors: {
  custom: {
    50: '#756bb1',
    500: '#31348f',
    950: '#000000',
  },
}

SCSS

$custom: #31348f;
$custom-light: #756bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#31348f",
  "rgb": {
    "r": 49,
    "g": 52,
    "b": 143
  },
  "hsl": {
    "h": 238.085,
    "s": 48.958,
    "l": 37.647
  },
  "oklch": {
    "l": 0.38227,
    "c": 0.1472,
    "h": 275.5
  },
  "luminance": 0.05092
}

Semantic roles & 50–950 ramp

primary

#31348F

secondary

#B5B267

accent

#D44FD9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #31348F

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

Preview Lab → · Contrast checker → · Palette generator →