#31448D#31448D

#31448D is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.3% C 0.123 H 269.4°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#31448D
RGB	rgb(49, 68, 141)
HSL	hsl(228, 48%, 37%)
HSV	hsv(228, 65%, 55%)
CMYK	cmyk(65.2%, 51.8%, 0%, 44.7%)
CIE-LAB	lab(31.14, 17.22, -42.91)
CIE-LCH	lch(31.14, 46.23, 291.86°)
OKLab	oklab(41.27% -0.0013 -0.123)
OKLCH	oklch(41.27% 0.123 269.4)
XYZ	xyz(8.1398, 6.7096, 26.0603)
Luminance	0.0671 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31448D #8D7A31

analogous

#31728D #31448D #4C318D

triadic

#31448D #8D3144 #448D31

tetradic

#31448D #8D3172 #8D7A31 #318D4C

square

#31448D #8D3172 #8D7A31 #318D4C

split-complementary

#31448D #8D4C31 #728D31

monochromatic

#111832 #212E60 #31448D #415ABA #6C80CC

Accessibility & contrast

On white

8.97

#31448D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#31448D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31448D

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31448D	#FFFFFF	#000000	##FFFFFF
##31448D	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4E90

Deuteranopia (green-blind)

#01458B

Tritanopia (blue-blind)

#005562

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #31448d;
/* rgb */ color: rgb(49, 68, 141);
/* oklch */ color: oklch(41.3% 0.123 269.4);

Tailwind

colors: {
  custom: {
    50: '#7377af',
    500: '#31448d',
    950: '#000000',
  },
}

SCSS

$custom: #31448d;
$custom-light: #7377af;
$custom-dark: #000000;

JSON

{
  "hex": "#31448d",
  "rgb": {
    "r": 49,
    "g": 68,
    "b": 141
  },
  "hsl": {
    "h": 227.609,
    "s": 48.421,
    "l": 37.255
  },
  "oklch": {
    "l": 0.41272,
    "c": 0.12297,
    "h": 269.4
  },
  "luminance": 0.0671
}

Semantic roles & 50–950 ramp

primary

#31448D

secondary

#B4A466

accent

#BC50D8

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #31448D

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

Preview Lab → · Contrast checker → · Palette generator →