#131B40#131B40

#131B40 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.9% C 0.071 H 270.9°. Best body text is #FFFFFF at 16.69:1 contrast (WCAG AA passes).

Color values

HEX	#131B40
RGB	rgb(19, 27, 64)
HSL	hsl(229, 54%, 16%)
HSV	hsv(229, 70%, 25%)
CMYK	cmyk(70.3%, 57.8%, 0%, 74.9%)
CIE-LAB	lab(11.22, 10.42, -24.76)
CIE-LCH	lch(11.22, 26.86, 292.83°)
OKLab	oklab(23.86% 0.0012 -0.0709)
OKLCH	oklch(23.86% 0.071 270.9)
XYZ	xyz(1.5856, 1.2923, 5.0154)
Luminance	0.0129 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B40 #403813

analogous

#133240 #131B40 #221340

triadic

#131B40 #40131B #1B4013

tetradic

#131B40 #401332 #403813 #134022

square

#131B40 #401332 #403813 #134022

split-complementary

#131B40 #402213 #324013

monochromatic

#070A18 #070A18 #131B40 #212F6F #2F439E

Accessibility & contrast

On white

16.69

#131B40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#131B40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B40

16.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B40	#FFFFFF	#000000	##FFFFFF
##131B40	1.00	16.69	1.26	16.69
#FFFFFF	16.69	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#072041

Deuteranopia (green-blind)

#001C3F

Tritanopia (blue-blind)

#00242A

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #131b40;
/* rgb */ color: rgb(19, 27, 64);
/* oklch */ color: oklch(23.9% 0.071 270.9);

Tailwind

colors: {
  custom: {
    50: '#565675',
    500: '#131b40',
    950: '#000000',
  },
}

SCSS

$custom: #131b40;
$custom-light: #565675;
$custom-dark: #000000;

JSON

{
  "hex": "#131b40",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 64
  },
  "hsl": {
    "h": 229.333,
    "s": 54.217,
    "l": 16.275
  },
  "oklch": {
    "l": 0.23858,
    "c": 0.07093,
    "h": 270.9
  },
  "luminance": 0.01292
}

Semantic roles & 50–950 ramp

primary

#131B40

secondary

#796D36

accent

#C34ADE

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #131B40

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

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