#131F71#131F71

#131F71 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.6% C 0.140 H 268.8°. Best body text is #FFFFFF at 14.36:1 contrast (WCAG AA passes).

Color values

HEX	#131F71
RGB	rgb(19, 31, 113)
HSL	hsl(232, 71%, 26%)
HSV	hsv(232, 83%, 44%)
CMYK	cmyk(83.2%, 72.6%, 0%, 55.7%)
CIE-LAB	lab(17.04, 27.63, -48.29)
CIE-LCH	lch(17.04, 55.64, 299.78°)
OKLab	oklab(29.6% -0.003 -0.1399)
OKLCH	oklch(29.6% 0.14 268.8)
XYZ	xyz(3.7382, 2.3102, 15.8685)
Luminance	0.0231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F71 #716513

analogous

#134E71 #131F71 #361371

triadic

#131F71 #71131F #1F7113

tetradic

#131F71 #71134E #716513 #137136

square

#131F71 #71134E #716513 #137136

split-complementary

#131F71 #713613 #4E7113

monochromatic

#04071A #0A113D #131F71 #1C2DA5 #253CDA

Accessibility & contrast

On white

14.36

#131F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#131F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F71

14.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F71	#FFFFFF	#000000	##FFFFFF
##131F71	1.00	14.36	1.46	14.36
#FFFFFF	14.36	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F73

Deuteranopia (green-blind)

#002570

Tritanopia (blue-blind)

#003645

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #131f71;
/* rgb */ color: rgb(19, 31, 113);
/* oklch */ color: oklch(29.6% 0.140 268.8);

Tailwind

colors: {
  custom: {
    50: '#645b9b',
    500: '#131f71',
    950: '#000000',
  },
}

SCSS

$custom: #131f71;
$custom-light: #645b9b;
$custom-dark: #000000;

JSON

{
  "hex": "#131f71",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 113
  },
  "hsl": {
    "h": 232.34,
    "s": 71.212,
    "l": 25.882
  },
  "oklch": {
    "l": 0.296,
    "c": 0.1399,
    "h": 268.8
  },
  "luminance": 0.02311
}

Semantic roles & 50–950 ramp

primary

#131F71

secondary

#A89938

accent

#D73AEE

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #131F71

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

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