#31356B#31356B

#31356B is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.5% C 0.092 H 277.4°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#31356B
RGB	rgb(49, 53, 107)
HSL	hsl(236, 37%, 31%)
HSV	hsv(236, 54%, 42%)
CMYK	cmyk(54.2%, 50.5%, 0%, 58%)
CIE-LAB	lab(24.51, 15.09, -32.18)
CIE-LCH	lch(24.51, 35.54, 295.13°)
OKLab	oklab(35.51% 0.0119 -0.0916)
OKLCH	oklch(35.51% 0.092 277.4)
XYZ	xyz(5.1927, 4.2604, 14.4558)
Luminance	0.0426 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31356B #6B6731

analogous

#31526B #31356B #4A316B

triadic

#31356B #6B3135 #356B31

tetradic

#31356B #6B3152 #6B6731 #316B4A

square

#31356B #6B3152 #6B6731 #316B4A

split-complementary

#31356B #6B4A31 #526B31

monochromatic

#0B0B17 #1E2041 #31356B #444A95 #6066B6

Accessibility & contrast

On white

11.34

#31356B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#31356B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31356B

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31356B	#FFFFFF	#000000	##FFFFFF
##31356B	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D3D6D

Deuteranopia (green-blind)

#17386A

Tritanopia (blue-blind)

#19414B

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #31356b;
/* rgb */ color: rgb(49, 53, 107);
/* oklch */ color: oklch(35.5% 0.092 277.4);

Tailwind

colors: {
  custom: {
    50: '#6e6c96',
    500: '#31356b',
    950: '#000000',
  },
}

SCSS

$custom: #31356b;
$custom-light: #6e6c96;
$custom-dark: #000000;

JSON

{
  "hex": "#31356b",
  "rgb": {
    "r": 49,
    "g": 53,
    "b": 107
  },
  "hsl": {
    "h": 235.862,
    "s": 37.179,
    "l": 30.588
  },
  "oklch": {
    "l": 0.35509,
    "c": 0.09236,
    "h": 277.4
  },
  "luminance": 0.04261
}

Semantic roles & 50–950 ramp

primary

#31356B

secondary

#9C985C

accent

#C55BCD

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060D

muted

#7A7A7E

Preview Lab

Preview with #31356B

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

Preview Lab → · Contrast checker → · Palette generator →