#31478F#31478F

#31478F is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.1% C 0.122 H 268.1°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#31478F
RGB	rgb(49, 71, 143)
HSL	hsl(226, 49%, 38%)
HSV	hsv(226, 66%, 56%)
CMYK	cmyk(65.7%, 50.3%, 0%, 43.9%)
CIE-LAB	lab(32.13, 15.94, -42.54)
CIE-LCH	lch(32.13, 45.42, 290.54°)
OKLab	oklab(42.07% -0.0041 -0.1218)
OKLCH	oklch(42.07% 0.122 268.1)
XYZ	xyz(8.4761, 7.1419, 26.9131)
Luminance	0.0714 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31478F #8F7931

analogous

#31768F #31478F #4A318F

triadic

#31478F #8F3147 #478F31

tetradic

#31478F #8F3176 #8F7931 #318F4A

square

#31478F #8F3176 #8F7931 #318F4A

split-complementary

#31478F #8F4A31 #768F31

monochromatic

#121A34 #213061 #31478F #415EBD #6D84CD

Accessibility & contrast

On white

8.65

#31478F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#31478F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31478F

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31478F	#FFFFFF	#000000	##FFFFFF
##31478F	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#205092

Deuteranopia (green-blind)

#0A488E

Tritanopia (blue-blind)

#005864

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #31478f;
/* rgb */ color: rgb(49, 71, 143);
/* oklch */ color: oklch(42.1% 0.122 268.1);

Tailwind

colors: {
  custom: {
    50: '#7379b0',
    500: '#31478f',
    950: '#000000',
  },
}

SCSS

$custom: #31478f;
$custom-light: #7379b0;
$custom-dark: #000000;

JSON

{
  "hex": "#31478f",
  "rgb": {
    "r": 49,
    "g": 71,
    "b": 143
  },
  "hsl": {
    "h": 225.957,
    "s": 48.958,
    "l": 37.647
  },
  "oklch": {
    "l": 0.42069,
    "c": 0.1219,
    "h": 268.1
  },
  "luminance": 0.07143
}

Semantic roles & 50–950 ramp

primary

#31478F

secondary

#B5A367

accent

#B84FD9

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #31478F

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

Preview Lab → · Contrast checker → · Palette generator →