#131B45#131B45

#131B45 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.3% C 0.079 H 271.2°. Best body text is #FFFFFF at 16.53:1 contrast (WCAG AA passes).

Color values

HEX	#131B45
RGB	rgb(19, 27, 69)
HSL	hsl(230, 57%, 17%)
HSV	hsv(230, 72%, 27%)
CMYK	cmyk(72.5%, 60.9%, 0%, 72.9%)
CIE-LAB	lab(11.63, 12.53, -27.60)
CIE-LCH	lch(11.63, 30.31, 294.41°)
OKLab	oklab(24.3% 0.0016 -0.0793)
OKLCH	oklch(24.3% 0.079 271.2)
XYZ	xyz(1.7343, 1.3518, 5.7986)
Luminance	0.0135 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B45 #453D13

analogous

#133445 #131B45 #241345

triadic

#131B45 #45131B #1B4513

tetradic

#131B45 #451334 #453D13 #134524

square

#131B45 #451334 #453D13 #134524

split-complementary

#131B45 #452413 #344513

monochromatic

#070918 #070918 #131B45 #202E75 #2D41A5

Accessibility & contrast

On white

16.53

#131B45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#131B45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B45

16.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B45	#FFFFFF	#000000	##FFFFFF
##131B45	1.00	16.53	1.27	16.53
#FFFFFF	16.53	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#012146

Deuteranopia (green-blind)

#001D44

Tritanopia (blue-blind)

#00252C

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #131b45;
/* rgb */ color: rgb(19, 27, 69);
/* oklch */ color: oklch(24.3% 0.079 271.2);

Tailwind

colors: {
  custom: {
    50: '#585779',
    500: '#131b45',
    950: '#000000',
  },
}

SCSS

$custom: #131b45;
$custom-light: #585779;
$custom-dark: #000000;

JSON

{
  "hex": "#131b45",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 69
  },
  "hsl": {
    "h": 230.4,
    "s": 56.818,
    "l": 17.255
  },
  "oklch": {
    "l": 0.24299,
    "c": 0.07931,
    "h": 271.2
  },
  "luminance": 0.01352
}

Semantic roles & 50–950 ramp

primary

#131B45

secondary

#7E7236

accent

#C848E0

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030309

muted

#78787B

Preview Lab

Preview with #131B45

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

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