#131B5F#131B5F

#131B5F is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.9% C 0.119 H 270.5°. Best body text is #FFFFFF at 15.56:1 contrast (WCAG AA passes).

Color values

HEX	#131B5F
RGB	rgb(19, 27, 95)
HSL	hsl(234, 67%, 22%)
HSV	hsv(234, 80%, 37%)
CMYK	cmyk(80%, 71.6%, 0%, 62.7%)
CIE-LAB	lab(14.11, 23.27, -41.29)
CIE-LCH	lch(14.11, 47.40, 299.40°)
OKLab	oklab(26.89% 0.001 -0.1195)
OKLCH	oklch(26.89% 0.119 270.5)
XYZ	xyz(2.7253, 1.7482, 11.0181)
Luminance	0.0175 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B5F #5F5713

analogous

#13415F #131B5F #31135F

triadic

#131B5F #5F131B #1B5F13

tetradic

#131B5F #5F1341 #5F5713 #135F31

square

#131B5F #5F1341 #5F5713 #135F31

split-complementary

#131B5F #5F3113 #415F13

monochromatic

#05071A #090D2C #131B5F #1D2992 #2738C5

Accessibility & contrast

On white

15.56

#131B5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#131B5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B5F

15.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B5F	#FFFFFF	#000000	##FFFFFF
##131B5F	1.00	15.56	1.35	15.56
#FFFFFF	15.56	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002761

Deuteranopia (green-blind)

#00205E

Tritanopia (blue-blind)

#002D3A

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #131b5f;
/* rgb */ color: rgb(19, 27, 95);
/* oklch */ color: oklch(26.9% 0.119 270.5);

Tailwind

colors: {
  custom: {
    50: '#5f578d',
    500: '#131b5f',
    950: '#000000',
  },
}

SCSS

$custom: #131b5f;
$custom-light: #5f578d;
$custom-dark: #000000;

JSON

{
  "hex": "#131b5f",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 95
  },
  "hsl": {
    "h": 233.684,
    "s": 66.667,
    "l": 22.353
  },
  "oklch": {
    "l": 0.26894,
    "c": 0.11946,
    "h": 270.5
  },
  "luminance": 0.01749
}

Semantic roles & 50–950 ramp

primary

#131B5F

secondary

#978D37

accent

#D83EEA

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #131B5F

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

Preview Lab → · Contrast checker → · Palette generator →