#131F4D#131F4D

#131F4D is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.0% C 0.086 H 268.7°. Best body text is #FFFFFF at 15.78:1 contrast (WCAG AA passes).

Color values

HEX	#131F4D
RGB	rgb(19, 31, 77)
HSL	hsl(228, 60%, 19%)
HSV	hsv(228, 75%, 30%)
CMYK	cmyk(75.3%, 59.7%, 0%, 69.8%)
CIE-LAB	lab(13.56, 12.85, -30.03)
CIE-LCH	lch(13.56, 32.66, 293.18°)
OKLab	oklab(25.96% -0.002 -0.0863)
OKLCH	oklch(25.96% 0.086 268.7)
XYZ	xyz(2.0976, 1.6540, 7.2285)
Luminance	0.0165 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F4D #4D4113

analogous

#133C4D #131F4D #24134D

triadic

#131F4D #4D131F #1F4D13

tetradic

#131F4D #4D133C #4D4113 #134D24

square

#131F4D #4D133C #4D4113 #134D24

split-complementary

#131F4D #4D2413 #3C4D13

monochromatic

#060A19 #070B1C #131F4D #1F337E #2B47AF

Accessibility & contrast

On white

15.78

#131F4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#131F4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F4D

15.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F4D	#FFFFFF	#000000	##FFFFFF
##131F4D	1.00	15.78	1.33	15.78
#FFFFFF	15.78	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01254F

Deuteranopia (green-blind)

#00204C

Tritanopia (blue-blind)

#002A32

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #131f4d;
/* rgb */ color: rgb(19, 31, 77);
/* oklch */ color: oklch(26.0% 0.086 268.7);

Tailwind

colors: {
  custom: {
    50: '#595a7f',
    500: '#131f4d',
    950: '#000000',
  },
}

SCSS

$custom: #131f4d;
$custom-light: #595a7f;
$custom-dark: #000000;

JSON

{
  "hex": "#131f4d",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 77
  },
  "hsl": {
    "h": 227.586,
    "s": 60.417,
    "l": 18.824
  },
  "oklch": {
    "l": 0.25959,
    "c": 0.08637,
    "h": 268.7
  },
  "luminance": 0.01654
}

Semantic roles & 50–950 ramp

primary

#131F4D

secondary

#867536

accent

#C344E4

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #131F4D

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

Preview Lab → · Contrast checker → · Palette generator →