#31478E#31478E

#31478E is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.0% C 0.120 H 268.0°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#31478E
RGB	rgb(49, 71, 142)
HSL	hsl(226, 49%, 37%)
HSV	hsv(226, 65%, 56%)
CMYK	cmyk(65.5%, 50%, 0%, 44.3%)
CIE-LAB	lab(32.06, 15.57, -42.03)
CIE-LCH	lch(32.06, 44.82, 290.32°)
OKLab	oklab(42% -0.0043 -0.1203)
OKLCH	oklch(42% 0.12 268)
XYZ	xyz(8.4007, 7.1117, 26.5159)
Luminance	0.0711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31478E #8E7831

analogous

#31768E #31478E #49318E

triadic

#31478E #8E3147 #478E31

tetradic

#31478E #8E3176 #8E7831 #318E49

square

#31478E #8E3176 #8E7831 #318E49

split-complementary

#31478E #8E4931 #768E31

monochromatic

#121A33 #213061 #31478E #415EBB #6D83CD

Accessibility & contrast

On white

8.67

#31478E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#31478E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31478E

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31478E	#FFFFFF	#000000	##FFFFFF
##31478E	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#215091

Deuteranopia (green-blind)

#0C478D

Tritanopia (blue-blind)

#005763

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #31478e;
/* rgb */ color: rgb(49, 71, 142);
/* oklch */ color: oklch(42.0% 0.120 268.0);

Tailwind

colors: {
  custom: {
    50: '#7379af',
    500: '#31478e',
    950: '#000000',
  },
}

SCSS

$custom: #31478e;
$custom-light: #7379af;
$custom-dark: #000000;

JSON

{
  "hex": "#31478e",
  "rgb": {
    "r": 49,
    "g": 71,
    "b": 142
  },
  "hsl": {
    "h": 225.806,
    "s": 48.691,
    "l": 37.451
  },
  "oklch": {
    "l": 0.41995,
    "c": 0.12043,
    "h": 268
  },
  "luminance": 0.07112
}

Semantic roles & 50–950 ramp

primary

#31478E

secondary

#B4A267

accent

#B850D8

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #31478E

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

Preview Lab → · Contrast checker → · Palette generator →