#31396B#31396B

#31396B is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.4% C 0.086 H 274.5°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#31396B
RGB	rgb(49, 57, 107)
HSL	hsl(232, 37%, 31%)
HSV	hsv(232, 54%, 42%)
CMYK	cmyk(54.2%, 46.7%, 0%, 58%)
CIE-LAB	lab(25.68, 12.33, -30.31)
CIE-LCH	lch(25.68, 32.72, 292.15°)
OKLab	oklab(36.4% 0.0067 -0.0861)
OKLCH	oklch(36.4% 0.086 274.5)
XYZ	xyz(5.3827, 4.6404, 14.5191)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31396B #6B6331

analogous

#31566B #31396B #46316B

triadic

#31396B #6B3139 #396B31

tetradic

#31396B #6B3156 #6B6331 #316B46

square

#31396B #6B3156 #6B6331 #316B46

split-complementary

#31396B #6B4631 #566B31

monochromatic

#0B0C17 #1E2341 #31396B #444F95 #606CB6

Accessibility & contrast

On white

10.89

#31396B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#31396B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31396B

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31396B	#FFFFFF	#000000	##FFFFFF
##31396B	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#243F6D

Deuteranopia (green-blind)

#1E3B6A

Tritanopia (blue-blind)

#18444C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #31396b;
/* rgb */ color: rgb(49, 57, 107);
/* oklch */ color: oklch(36.4% 0.086 274.5);

Tailwind

colors: {
  custom: {
    50: '#6e6f96',
    500: '#31396b',
    950: '#000000',
  },
}

SCSS

$custom: #31396b;
$custom-light: #6e6f96;
$custom-dark: #000000;

JSON

{
  "hex": "#31396b",
  "rgb": {
    "r": 49,
    "g": 57,
    "b": 107
  },
  "hsl": {
    "h": 231.724,
    "s": 37.179,
    "l": 30.588
  },
  "oklch": {
    "l": 0.36398,
    "c": 0.08633,
    "h": 274.5
  },
  "luminance": 0.04641
}

Semantic roles & 50–950 ramp

primary

#31396B

secondary

#9C935C

accent

#BD5BCD

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070D

muted

#7A7A7E

Preview Lab

Preview with #31396B

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

Preview Lab → · Contrast checker → · Palette generator →