#31389A#31389A

#31389A is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.9% C 0.157 H 273.7°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#31389A
RGB	rgb(49, 56, 154)
HSL	hsl(236, 52%, 40%)
HSV	hsv(236, 68%, 60%)
CMYK	cmyk(68.2%, 63.6%, 0%, 39.6%)
CIE-LAB	lab(28.94, 30.00, -54.43)
CIE-LCH	lch(28.94, 62.15, 298.86°)
OKLab	oklab(39.95% 0.0101 -0.157)
OKLCH	oklch(39.95% 0.157 273.7)
XYZ	xyz(8.5116, 5.8136, 31.2392)
Luminance	0.0581 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31389A #9A9331

analogous

#316D9A #31389A #5F319A

triadic

#31389A #9A3138 #389A31

tetradic

#31389A #9A316D #9A9331 #319A5F

square

#31389A #9A316D #9A9331 #319A5F

split-complementary

#31389A #9A5F31 #6D9A31

monochromatic

#13163D #22276C #31389A #454DC4 #7379D2

Accessibility & contrast

On white

9.71

#31389A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#31389A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31389A

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31389A	#FFFFFF	#000000	##FFFFFF
##31389A	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499D

Deuteranopia (green-blind)

#004098

Tritanopia (blue-blind)

#005163

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #31389a;
/* rgb */ color: rgb(49, 56, 154);
/* oklch */ color: oklch(39.9% 0.157 273.7);

Tailwind

colors: {
  custom: {
    50: '#776eb9',
    500: '#31389a',
    950: '#000000',
  },
}

SCSS

$custom: #31389a;
$custom-light: #776eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#31389a",
  "rgb": {
    "r": 49,
    "g": 56,
    "b": 154
  },
  "hsl": {
    "h": 236,
    "s": 51.724,
    "l": 39.804
  },
  "oklch": {
    "l": 0.39948,
    "c": 0.15732,
    "h": 273.7
  },
  "luminance": 0.05814
}

Semantic roles & 50–950 ramp

primary

#31389A

secondary

#BAB56C

accent

#D24DDB

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #31389A

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

Preview Lab → · Contrast checker → · Palette generator →