#131F4C#131F4C

#131F4C is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.9% C 0.085 H 268.6°. Best body text is #FFFFFF at 15.81:1 contrast (WCAG AA passes).

Color values

HEX	#131F4C
RGB	rgb(19, 31, 76)
HSL	hsl(227, 60%, 19%)
HSV	hsv(227, 75%, 30%)
CMYK	cmyk(75%, 59.2%, 0%, 70.2%)
CIE-LAB	lab(13.47, 12.43, -29.47)
CIE-LCH	lch(13.47, 31.99, 292.87°)
OKLab	oklab(25.87% -0.0021 -0.0847)
OKLCH	oklch(25.87% 0.085 268.6)
XYZ	xyz(2.0626, 1.6400, 7.0439)
Luminance	0.0164 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F4C #4C4013

analogous

#133B4C #131F4C #23134C

triadic

#131F4C #4C131F #1F4C13

tetradic

#131F4C #4C133B #4C4013 #134C23

square

#131F4C #4C133B #4C4013 #134C23

split-complementary

#131F4C #4C2313 #3B4C13

monochromatic

#060A18 #070B1B #131F4C #1F337D #2B47AE

Accessibility & contrast

On white

15.81

#131F4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#131F4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F4C

15.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F4C	#FFFFFF	#000000	##FFFFFF
##131F4C	1.00	15.81	1.33	15.81
#FFFFFF	15.81	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02254E

Deuteranopia (green-blind)

#00204B

Tritanopia (blue-blind)

#002A32

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #131f4c;
/* rgb */ color: rgb(19, 31, 76);
/* oklch */ color: oklch(25.9% 0.085 268.6);

Tailwind

colors: {
  custom: {
    50: '#595a7e',
    500: '#131f4c',
    950: '#000000',
  },
}

SCSS

$custom: #131f4c;
$custom-light: #595a7e;
$custom-dark: #000000;

JSON

{
  "hex": "#131f4c",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 76
  },
  "hsl": {
    "h": 227.368,
    "s": 60,
    "l": 18.627
  },
  "oklch": {
    "l": 0.2587,
    "c": 0.08476,
    "h": 268.6
  },
  "luminance": 0.0164
}

Semantic roles & 50–950 ramp

primary

#131F4C

secondary

#857436

accent

#C245E3

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #131F4C

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

Preview Lab → · Contrast checker → · Palette generator →