#131F38#131F38

#131F38 is a very dark, muted blue. Relative luminance 0.014; OKLCH L 24.3% C 0.051 H 263.6°. Best body text is #FFFFFF at 16.40:1 contrast (WCAG AA passes).

Color values

HEX	#131F38
RGB	rgb(19, 31, 56)
HSL	hsl(221, 49%, 15%)
HSV	hsv(221, 66%, 22%)
CMYK	cmyk(66.1%, 44.6%, 0%, 78%)
CIE-LAB	lab(11.98, 4.02, -17.87)
CIE-LCH	lch(11.98, 18.32, 282.67°)
OKLab	oklab(24.25% -0.0056 -0.0506)
OKLCH	oklch(24.25% 0.051 263.6)
XYZ	xyz(1.4721, 1.4038, 3.9340)
Luminance	0.0140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F38 #382C13

analogous

#133238 #131F38 #1A1338

triadic

#131F38 #38131F #1F3813

tetradic

#131F38 #381332 #382C13 #13381A

square

#131F38 #381332 #382C13 #13381A

split-complementary

#131F38 #381A13 #323813

monochromatic

#080D17 #080D17 #131F38 #233866 #325293

Accessibility & contrast

On white

16.40

#131F38 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#131F38 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F38

16.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F38	#FFFFFF	#000000	##FFFFFF
##131F38	1.00	16.40	1.28	16.40
#FFFFFF	16.40	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#152139

Deuteranopia (green-blind)

#101E37

Tritanopia (blue-blind)

#002528

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #131f38;
/* rgb */ color: rgb(19, 31, 56);
/* oklch */ color: oklch(24.3% 0.051 263.6);

Tailwind

colors: {
  custom: {
    50: '#545a6e',
    500: '#131f38',
    950: '#000000',
  },
}

SCSS

$custom: #131f38;
$custom-light: #545a6e;
$custom-dark: #000000;

JSON

{
  "hex": "#131f38",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 56
  },
  "hsl": {
    "h": 220.541,
    "s": 49.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.24254,
    "c": 0.05096,
    "h": 263.6
  },
  "luminance": 0.01404
}

Semantic roles & 50–950 ramp

primary

#131F38

secondary

#705E37

accent

#AC4FD9

background

#F5F5F6

surface

#E8E9EC

border

#C4C5C7

text

#030307

muted

#78787A

Preview Lab

Preview with #131F38

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

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