#131A40#131A40

#131A40 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.6% C 0.072 H 271.9°. Best body text is #FFFFFF at 16.81:1 contrast (WCAG AA passes).

Color values

HEX	#131A40
RGB	rgb(19, 26, 64)
HSL	hsl(231, 54%, 16%)
HSV	hsv(231, 70%, 25%)
CMYK	cmyk(70.3%, 59.4%, 0%, 74.9%)
CIE-LAB	lab(10.90, 11.19, -25.28)
CIE-LCH	lch(10.90, 27.64, 293.89°)
OKLab	oklab(23.62% 0.0024 -0.0725)
OKLCH	oklch(23.62% 0.073 271.9)
XYZ	xyz(1.5631, 1.2473, 5.0079)
Luminance	0.0125 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131A40 #403913

analogous

#133140 #131A40 #231340

triadic

#131A40 #40131A #1A4013

tetradic

#131A40 #401331 #403913 #134023

square

#131A40 #401331 #403913 #134023

split-complementary

#131A40 #402313 #314013

monochromatic

#070A18 #070A18 #131A40 #212D6F #2F409E

Accessibility & contrast

On white

16.81

#131A40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#131A40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131A40

16.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131A40	#FFFFFF	#000000	##FFFFFF
##131A40	1.00	16.81	1.25	16.81
#FFFFFF	16.81	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#041F41

Deuteranopia (green-blind)

#001B3F

Tritanopia (blue-blind)

#00232A

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #131a40;
/* rgb */ color: rgb(19, 26, 64);
/* oklch */ color: oklch(23.6% 0.072 271.9);

Tailwind

colors: {
  custom: {
    50: '#565675',
    500: '#131a40',
    950: '#000000',
  },
}

SCSS

$custom: #131a40;
$custom-light: #565675;
$custom-dark: #000000;

JSON

{
  "hex": "#131a40",
  "rgb": {
    "r": 19,
    "g": 26,
    "b": 64
  },
  "hsl": {
    "h": 230.667,
    "s": 54.217,
    "l": 16.275
  },
  "oklch": {
    "l": 0.23616,
    "c": 0.0725,
    "h": 271.9
  },
  "luminance": 0.01247
}

Semantic roles & 50–950 ramp

primary

#131A40

secondary

#796E36

accent

#C74ADE

background

#F5F5F7

surface

#E9E8ED

border

#C5C4C8

text

#030308

muted

#78787B

Preview Lab

Preview with #131A40

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

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