#131C5B#131C5B

#131C5B is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.7% C 0.112 H 270.3°. Best body text is #FFFFFF at 15.62:1 contrast (WCAG AA passes).

Color values

HEX	#131C5B
RGB	rgb(19, 28, 91)
HSL	hsl(233, 65%, 22%)
HSV	hsv(233, 79%, 36%)
CMYK	cmyk(79.1%, 69.2%, 0%, 64.3%)
CIE-LAB	lab(13.97, 20.94, -38.85)
CIE-LCH	lch(13.97, 44.13, 298.32°)
OKLab	oklab(26.67% 0.0006 -0.1123)
OKLCH	oklch(26.67% 0.112 270.3)
XYZ	xyz(2.5715, 1.7240, 10.0927)
Luminance	0.0172 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131C5B #5B5213

analogous

#13405B #131C5B #2E135B

triadic

#131C5B #5B131C #1C5B13

tetradic

#131C5B #5B1340 #5B5213 #135B2E

square

#131C5B #5B1340 #5B5213 #135B2E

split-complementary

#131C5B #5B2E13 #405B13

monochromatic

#050819 #080C28 #131C5B #1E2C8E #283BC0

Accessibility & contrast

On white

15.62

#131C5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#131C5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131C5B

15.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131C5B	#FFFFFF	#000000	##FFFFFF
##131C5B	1.00	15.62	1.34	15.62
#FFFFFF	15.62	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00275D

Deuteranopia (green-blind)

#00205A

Tritanopia (blue-blind)

#002D38

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #131c5b;
/* rgb */ color: rgb(19, 28, 91);
/* oklch */ color: oklch(26.7% 0.112 270.3);

Tailwind

colors: {
  custom: {
    50: '#5d588a',
    500: '#131c5b',
    950: '#000000',
  },
}

SCSS

$custom: #131c5b;
$custom-light: #5d588a;
$custom-dark: #000000;

JSON

{
  "hex": "#131c5b",
  "rgb": {
    "r": 19,
    "g": 28,
    "b": 91
  },
  "hsl": {
    "h": 232.5,
    "s": 65.455,
    "l": 21.569
  },
  "oklch": {
    "l": 0.26667,
    "c": 0.1123,
    "h": 270.3
  },
  "luminance": 0.01724
}

Semantic roles & 50–950 ramp

primary

#131C5B

secondary

#938837

accent

#D33FE8

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #131C5B

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

Preview Lab → · Contrast checker → · Palette generator →