#31389F#31389F

#31389F is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.4% C 0.164 H 273.4°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#31389F
RGB	rgb(49, 56, 159)
HSL	hsl(236, 53%, 41%)
HSV	hsv(236, 69%, 62%)
CMYK	cmyk(69.2%, 64.8%, 0%, 37.6%)
CIE-LAB	lab(29.37, 31.80, -56.76)
CIE-LCH	lch(29.37, 65.06, 299.26°)
OKLab	oklab(40.4% 0.0098 -0.1638)
OKLCH	oklch(40.4% 0.164 273.4)
XYZ	xyz(8.9367, 5.9837, 33.4782)
Luminance	0.0599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31389F #9F9831

analogous

#316F9F #31389F #61319F

triadic

#31389F #9F3138 #389F31

tetradic

#31389F #9F316F #9F9831 #319F61

square

#31389F #9F316F #9F9831 #319F61

split-complementary

#31389F #9F6131 #6F9F31

monochromatic

#141741 #232870 #31389F #474FC6 #767CD5

Accessibility & contrast

On white

9.56

#31389F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#31389F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31389F

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31389F	#FFFFFF	#000000	##FFFFFF
##31389F	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA2

Deuteranopia (green-blind)

#00409D

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #31389f;
/* rgb */ color: rgb(49, 56, 159);
/* oklch */ color: oklch(40.4% 0.164 273.4);

Tailwind

colors: {
  custom: {
    50: '#786fbc',
    500: '#31389f',
    950: '#000000',
  },
}

SCSS

$custom: #31389f;
$custom-light: #786fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#31389f",
  "rgb": {
    "r": 49,
    "g": 56,
    "b": 159
  },
  "hsl": {
    "h": 236.182,
    "s": 52.885,
    "l": 40.784
  },
  "oklch": {
    "l": 0.404,
    "c": 0.16413,
    "h": 273.4
  },
  "luminance": 0.05985
}

Semantic roles & 50–950 ramp

primary

#31389F

secondary

#BDB86F

accent

#D34CDC

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #31389F

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

Preview Lab → · Contrast checker → · Palette generator →