#31528D#31528D

#31528D is a dark, moderate blue. Relative luminance 0.086; OKLCH L 44.4% C 0.105 H 261.1°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#31528D
RGB	rgb(49, 82, 141)
HSL	hsl(218, 48%, 37%)
HSV	hsv(218, 65%, 55%)
CMYK	cmyk(65.2%, 41.8%, 0%, 44.7%)
CIE-LAB	lab(35.22, 7.87, -36.36)
CIE-LCH	lch(35.22, 37.20, 282.21°)
OKLab	oklab(44.4% -0.0161 -0.1035)
OKLCH	oklch(44.4% 0.105 261.1)
XYZ	xyz(9.0899, 8.6098, 26.3770)
Luminance	0.0861 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31528D #8D6C31

analogous

#31808D #31528D #3E318D

triadic

#31528D #8D3152 #528D31

tetradic

#31528D #8D3180 #8D6C31 #318D3E

square

#31528D #8D3180 #8D6C31 #318D3E

split-complementary

#31528D #8D3E31 #808D31

monochromatic

#111D32 #213860 #31528D #416CBA #6C8FCC

Accessibility & contrast

On white

7.71

#31528D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#31528D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31528D

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31528D	#FFFFFF	#000000	##FFFFFF
##31528D	1.00	7.71	2.72	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38578F

Deuteranopia (green-blind)

#2A4F8C

Tritanopia (blue-blind)

#005F68

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #31528d;
/* rgb */ color: rgb(49, 82, 141);
/* oklch */ color: oklch(44.4% 0.105 261.1);

Tailwind

colors: {
  custom: {
    50: '#7382af',
    500: '#31528d',
    950: '#000000',
  },
}

SCSS

$custom: #31528d;
$custom-light: #7382af;
$custom-dark: #000000;

JSON

{
  "hex": "#31528d",
  "rgb": {
    "r": 49,
    "g": 82,
    "b": 141
  },
  "hsl": {
    "h": 218.478,
    "s": 48.421,
    "l": 37.255
  },
  "oklch": {
    "l": 0.44402,
    "c": 0.10479,
    "h": 261.1
  },
  "luminance": 0.08611
}

Semantic roles & 50–950 ramp

primary

#31528D

secondary

#B49866

accent

#A750D8

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #31528D

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

Preview Lab → · Contrast checker → · Palette generator →