#31359E#31359E

#31359E is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.8% C 0.166 H 274.2°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#31359E
RGB	rgb(49, 53, 158)
HSL	hsl(238, 53%, 41%)
HSV	hsv(238, 69%, 62%)
CMYK	cmyk(69%, 66.5%, 0%, 38%)
CIE-LAB	lab(28.56, 33.36, -57.49)
CIE-LCH	lch(28.56, 66.47, 300.13°)
OKLab	oklab(39.78% 0.0122 -0.166)
OKLCH	oklch(39.78% 0.166 274.2)
XYZ	xyz(8.7092, 5.6670, 32.9760)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31359E #9E9A31

analogous

#316B9E #31359E #63319E

triadic

#31359E #9E3135 #359E31

tetradic

#31359E #9E316B #9E9A31 #319E63

square

#31359E #9E316B #9E9A31 #319E63

split-complementary

#31359E #9E6331 #6B9E31

monochromatic

#141641 #23256F #31359E #464BC6 #7579D4

Accessibility & contrast

On white

9.84

#31359E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#31359E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31359E

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31359E	#FFFFFF	#000000	##FFFFFF
##31359E	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A1

Deuteranopia (green-blind)

#003E9C

Tritanopia (blue-blind)

#005064

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #31359e;
/* rgb */ color: rgb(49, 53, 158);
/* oklch */ color: oklch(39.8% 0.166 274.2);

Tailwind

colors: {
  custom: {
    50: '#786cbc',
    500: '#31359e',
    950: '#000000',
  },
}

SCSS

$custom: #31359e;
$custom-light: #786cbc;
$custom-dark: #000000;

JSON

{
  "hex": "#31359e",
  "rgb": {
    "r": 49,
    "g": 53,
    "b": 158
  },
  "hsl": {
    "h": 237.798,
    "s": 52.657,
    "l": 40.588
  },
  "oklch": {
    "l": 0.39778,
    "c": 0.16642,
    "h": 274.2
  },
  "luminance": 0.05668
}

Semantic roles & 50–950 ramp

primary

#31359E

secondary

#BCB96E

accent

#D74CDC

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #31359E

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

Preview Lab → · Contrast checker → · Palette generator →