#31409F#31409F

#31409F is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.9% C 0.154 H 271.3°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#31409F
RGB	rgb(49, 64, 159)
HSL	hsl(232, 53%, 41%)
HSV	hsv(232, 69%, 62%)
CMYK	cmyk(69.2%, 59.7%, 0%, 37.6%)
CIE-LAB	lab(31.40, 26.56, -53.45)
CIE-LCH	lch(31.40, 59.69, 296.42°)
OKLab	oklab(41.9% 0.0034 -0.154)
OKLCH	oklch(41.9% 0.154 271.3)
XYZ	xyz(9.3559, 6.8221, 33.6179)
Luminance	0.0682 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31409F #9F9031

analogous

#31779F #31409F #59319F

triadic

#31409F #9F3140 #409F31

tetradic

#31409F #9F3177 #9F9031 #319F59

square

#31409F #9F3177 #9F9031 #319F59

split-complementary

#31409F #9F5931 #779F31

monochromatic

#141A41 #232D70 #31409F #4758C6 #7683D5

Accessibility & contrast

On white

8.88

#31409F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#31409F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31409F

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31409F	#FFFFFF	#000000	##FFFFFF
##31409F	1.00	8.88	2.36	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA2

Deuteranopia (green-blind)

#00459D

Tritanopia (blue-blind)

#005869

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #31409f;
/* rgb */ color: rgb(49, 64, 159);
/* oklch */ color: oklch(41.9% 0.154 271.3);

Tailwind

colors: {
  custom: {
    50: '#7774bc',
    500: '#31409f',
    950: '#000000',
  },
}

SCSS

$custom: #31409f;
$custom-light: #7774bc;
$custom-dark: #000000;

JSON

{
  "hex": "#31409f",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 159
  },
  "hsl": {
    "h": 231.818,
    "s": 52.885,
    "l": 40.784
  },
  "oklch": {
    "l": 0.41896,
    "c": 0.15408,
    "h": 271.3
  },
  "luminance": 0.06823
}

Semantic roles & 50–950 ramp

primary

#31409F

secondary

#BDB26F

accent

#C94CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #31409F

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

Preview Lab → · Contrast checker → · Palette generator →