#131C3C#131C3C

#131C3C is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.8% C 0.063 H 269.4°. Best body text is #FFFFFF at 16.68:1 contrast (WCAG AA passes).

Color values

HEX	#131C3C
RGB	rgb(19, 28, 60)
HSL	hsl(227, 52%, 15%)
HSV	hsv(227, 68%, 24%)
CMYK	cmyk(68.3%, 53.3%, 0%, 76.5%)
CIE-LAB	lab(11.24, 7.98, -21.90)
CIE-LCH	lch(11.24, 23.31, 290.01°)
OKLab	oklab(23.77% -0.0007 -0.0625)
OKLCH	oklch(23.77% 0.063 269.4)
XYZ	xyz(1.4992, 1.2951, 4.4451)
Luminance	0.0129 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131C3C #3C3313

analogous

#13303C #131C3C #1E133C

triadic

#131C3C #3C131C #1C3C13

tetradic

#131C3C #3C1330 #3C3313 #133C1E

square

#131C3C #3C1330 #3C3313 #133C1E

split-complementary

#131C3C #3C1E13 #303C13

monochromatic

#070B17 #070B17 #131C3C #22326A #304799

Accessibility & contrast

On white

16.68

#131C3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#131C3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131C3C

16.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131C3C	#FFFFFF	#000000	##FFFFFF
##131C3C	1.00	16.68	1.26	16.68
#FFFFFF	16.68	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D203D

Deuteranopia (green-blind)

#071C3B

Tritanopia (blue-blind)

#002329

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #131c3c;
/* rgb */ color: rgb(19, 28, 60);
/* oklch */ color: oklch(23.8% 0.063 269.4);

Tailwind

colors: {
  custom: {
    50: '#555772',
    500: '#131c3c',
    950: '#000000',
  },
}

SCSS

$custom: #131c3c;
$custom-light: #555772;
$custom-dark: #000000;

JSON

{
  "hex": "#131c3c",
  "rgb": {
    "r": 19,
    "g": 28,
    "b": 60
  },
  "hsl": {
    "h": 226.829,
    "s": 51.899,
    "l": 15.49
  },
  "oklch": {
    "l": 0.23774,
    "c": 0.0625,
    "h": 269.4
  },
  "luminance": 0.01295
}

Semantic roles & 50–950 ramp

primary

#131C3C

secondary

#746736

accent

#BC4CDB

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030308

muted

#78787B

Preview Lab

Preview with #131C3C

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

Preview Lab → · Contrast checker → · Palette generator →