#131F41#131F41

#131F41 is a very dark, moderate blue. Relative luminance 0.015; OKLCH L 24.9% C 0.066 H 266.9°. Best body text is #FFFFFF at 16.15:1 contrast (WCAG AA passes).

Color values

HEX	#131F41
RGB	rgb(19, 31, 65)
HSL	hsl(224, 55%, 16%)
HSV	hsv(224, 71%, 25%)
CMYK	cmyk(70.8%, 52.3%, 0%, 74.5%)
CIE-LAB	lab(12.61, 7.77, -23.24)
CIE-LCH	lch(12.61, 24.50, 288.49°)
OKLab	oklab(24.94% -0.0036 -0.0664)
OKLCH	oklch(24.94% 0.066 266.9)
XYZ	xyz(1.7124, 1.4999, 5.1993)
Luminance	0.0150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F41 #413513

analogous

#133641 #131F41 #1E1341

triadic

#131F41 #41131F #1F4113

tetradic

#131F41 #411336 #413513 #13411E

square

#131F41 #411336 #413513 #13411E

split-complementary

#131F41 #411E13 #364113

monochromatic

#070B18 #070B18 #131F41 #213670 #2F4CA0

Accessibility & contrast

On white

16.15

#131F41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#131F41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F41

16.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F41	#FFFFFF	#000000	##FFFFFF
##131F41	1.00	16.15	1.30	16.15
#FFFFFF	16.15	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F2342

Deuteranopia (green-blind)

#071F40

Tritanopia (blue-blind)

#00272C

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #131f41;
/* rgb */ color: rgb(19, 31, 65);
/* oklch */ color: oklch(24.9% 0.066 266.9);

Tailwind

colors: {
  custom: {
    50: '#565a76',
    500: '#131f41',
    950: '#000000',
  },
}

SCSS

$custom: #131f41;
$custom-light: #565a76;
$custom-dark: #000000;

JSON

{
  "hex": "#131f41",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 65
  },
  "hsl": {
    "h": 224.348,
    "s": 54.762,
    "l": 16.471
  },
  "oklch": {
    "l": 0.24937,
    "c": 0.06648,
    "h": 266.9
  },
  "luminance": 0.015
}

Semantic roles & 50–950 ramp

primary

#131F41

secondary

#7A6836

accent

#B74ADE

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #131F41

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

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