#131748#131748

#131748 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.7% C 0.090 H 273.7°. Best body text is #FFFFFF at 16.88:1 contrast (WCAG AA passes).

Color values

HEX	#131748
RGB	rgb(19, 23, 72)
HSL	hsl(235, 58%, 18%)
HSV	hsv(235, 74%, 28%)
CMYK	cmyk(73.6%, 68.1%, 0%, 71.8%)
CIE-LAB	lab(10.70, 16.81, -31.22)
CIE-LCH	lch(10.70, 35.46, 298.31°)
OKLab	oklab(23.69% 0.0058 -0.09)
OKLCH	oklch(23.69% 0.09 273.7)
XYZ	xyz(1.7443, 1.2190, 6.2730)
Luminance	0.0122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131748 #484413

analogous

#133148 #131748 #291348

triadic

#131748 #481317 #174813

tetradic

#131748 #481331 #484413 #134829

square

#131748 #481331 #484413 #134829

split-complementary

#131748 #482913 #314813

monochromatic

#060818 #060818 #131748 #202678 #2D36A9

Accessibility & contrast

On white

16.88

#131748 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#131748 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131748

16.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131748	#FFFFFF	#000000	##FFFFFF
##131748	1.00	16.88	1.24	16.88
#FFFFFF	16.88	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F4A

Deuteranopia (green-blind)

#001B47

Tritanopia (blue-blind)

#00232C

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #131748;
/* rgb */ color: rgb(19, 23, 72);
/* oklch */ color: oklch(23.7% 0.090 273.7);

Tailwind

colors: {
  custom: {
    50: '#59537b',
    500: '#131748',
    950: '#000000',
  },
}

SCSS

$custom: #131748;
$custom-light: #59537b;
$custom-dark: #000000;

JSON

{
  "hex": "#131748",
  "rgb": {
    "r": 19,
    "g": 23,
    "b": 72
  },
  "hsl": {
    "h": 235.472,
    "s": 58.242,
    "l": 17.843
  },
  "oklch": {
    "l": 0.23687,
    "c": 0.09016,
    "h": 273.7
  },
  "luminance": 0.01219
}

Semantic roles & 50–950 ramp

primary

#131748

secondary

#817B36

accent

#D646E1

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#040209

muted

#79787B

Preview Lab

Preview with #131748

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

Preview Lab → · Contrast checker → · Palette generator →