#31479F#31479F

#31479F is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.3% C 0.145 H 269.0°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#31479F
RGB	rgb(49, 71, 159)
HSL	hsl(228, 53%, 41%)
HSV	hsv(228, 69%, 62%)
CMYK	cmyk(69.2%, 55.3%, 0%, 37.6%)
CIE-LAB	lab(33.27, 21.90, -50.42)
CIE-LCH	lch(33.27, 54.97, 293.48°)
OKLab	oklab(43.29% -0.0026 -0.145)
OKLCH	oklch(43.29% 0.145 269)
XYZ	xyz(9.7757, 7.6617, 33.7578)
Luminance	0.0766 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31479F #9F8931

analogous

#317E9F #31479F #52319F

triadic

#31479F #9F3147 #479F31

tetradic

#31479F #9F317E #9F8931 #319F52

square

#31479F #9F317E #9F8931 #319F52

split-complementary

#31479F #9F5231 #7E9F31

monochromatic

#141D41 #233270 #31479F #4760C6 #7689D5

Accessibility & contrast

On white

8.29

#31479F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#31479F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31479F

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31479F	#FFFFFF	#000000	##FFFFFF
##31479F	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A2

Deuteranopia (green-blind)

#00499D

Tritanopia (blue-blind)

#005C6C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #31479f;
/* rgb */ color: rgb(49, 71, 159);
/* oklch */ color: oklch(43.3% 0.145 269.0);

Tailwind

colors: {
  custom: {
    50: '#7779bc',
    500: '#31479f',
    950: '#000000',
  },
}

SCSS

$custom: #31479f;
$custom-light: #7779bc;
$custom-dark: #000000;

JSON

{
  "hex": "#31479f",
  "rgb": {
    "r": 49,
    "g": 71,
    "b": 159
  },
  "hsl": {
    "h": 228,
    "s": 52.885,
    "l": 40.784
  },
  "oklch": {
    "l": 0.43294,
    "c": 0.14504,
    "h": 269
  },
  "luminance": 0.07663
}

Semantic roles & 50–950 ramp

primary

#31479F

secondary

#BDAD6F

accent

#BF4CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #31479F

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

Preview Lab → · Contrast checker → · Palette generator →