#31359B#31359B

#31359B is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.5% C 0.162 H 274.4°. Best body text is #FFFFFF at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#31359B
RGB	rgb(49, 53, 155)
HSL	hsl(238, 52%, 40%)
HSV	hsv(238, 68%, 61%)
CMYK	cmyk(68.4%, 65.8%, 0%, 39.2%)
CIE-LAB	lab(28.29, 32.30, -56.10)
CIE-LCH	lch(28.29, 64.74, 299.93°)
OKLab	oklab(39.5% 0.0124 -0.1619)
OKLCH	oklch(39.5% 0.162 274.4)
XYZ	xyz(8.4542, 5.5650, 31.6326)
Luminance	0.0557 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31359B #9B9731

analogous

#316A9B #31359B #62319B

triadic

#31359B #9B3135 #359B31

tetradic

#31359B #9B316A #9B9731 #319B62

square

#31359B #9B316A #9B9731 #319B62

split-complementary

#31359B #9B6231 #6A9B31

monochromatic

#14153E #22256D #31359B #454AC4 #7377D3

Accessibility & contrast

On white

9.94

#31359B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#31359B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31359B

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31359B	#FFFFFF	#000000	##FFFFFF
##31359B	1.00	9.94	2.11	9.94
#FFFFFF	9.94	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489E

Deuteranopia (green-blind)

#003E99

Tritanopia (blue-blind)

#004F63

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #31359b;
/* rgb */ color: rgb(49, 53, 155);
/* oklch */ color: oklch(39.5% 0.162 274.4);

Tailwind

colors: {
  custom: {
    50: '#776cb9',
    500: '#31359b',
    950: '#000000',
  },
}

SCSS

$custom: #31359b;
$custom-light: #776cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#31359b",
  "rgb": {
    "r": 49,
    "g": 53,
    "b": 155
  },
  "hsl": {
    "h": 237.736,
    "s": 51.961,
    "l": 40
  },
  "oklch": {
    "l": 0.39499,
    "c": 0.16239,
    "h": 274.4
  },
  "luminance": 0.05566
}

Semantic roles & 50–950 ramp

primary

#31359B

secondary

#BBB86D

accent

#D64CDB

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #31359B

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

Preview Lab → · Contrast checker → · Palette generator →