#31399E#31399E

#31399E is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.5% C 0.162 H 273.2°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#31399E
RGB	rgb(49, 57, 158)
HSL	hsl(236, 53%, 41%)
HSV	hsv(236, 69%, 62%)
CMYK	cmyk(69%, 63.9%, 0%, 38%)
CIE-LAB	lab(29.53, 30.79, -55.89)
CIE-LCH	lch(29.53, 63.81, 298.85°)
OKLab	oklab(40.49% 0.0091 -0.1613)
OKLCH	oklch(40.49% 0.162 273.2)
XYZ	xyz(8.8992, 6.0470, 33.0393)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31399E #9E9631

analogous

#316F9E #31399E #5F319E

triadic

#31399E #9E3139 #399E31

tetradic

#31399E #9E316F #9E9631 #319E5F

square

#31399E #9E316F #9E9631 #319E5F

split-complementary

#31399E #9E5F31 #6F9E31

monochromatic

#141741 #23286F #31399E #4650C6 #757CD4

Accessibility & contrast

On white

9.50

#31399E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#31399E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31399E

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31399E	#FFFFFF	#000000	##FFFFFF
##31399E	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA1

Deuteranopia (green-blind)

#00419C

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #31399e;
/* rgb */ color: rgb(49, 57, 158);
/* oklch */ color: oklch(40.5% 0.162 273.2);

Tailwind

colors: {
  custom: {
    50: '#786fbc',
    500: '#31399e',
    950: '#000000',
  },
}

SCSS

$custom: #31399e;
$custom-light: #786fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#31399e",
  "rgb": {
    "r": 49,
    "g": 57,
    "b": 158
  },
  "hsl": {
    "h": 235.596,
    "s": 52.657,
    "l": 40.588
  },
  "oklch": {
    "l": 0.4049,
    "c": 0.16154,
    "h": 273.2
  },
  "luminance": 0.06048
}

Semantic roles & 50–950 ramp

primary

#31399E

secondary

#BCB76E

accent

#D14CDC

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #31399E

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

Preview Lab → · Contrast checker → · Palette generator →