#131B5E#131B5E

#131B5E is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.8% C 0.118 H 270.5°. Best body text is #FFFFFF at 15.60:1 contrast (WCAG AA passes).

Color values

HEX	#131B5E
RGB	rgb(19, 27, 94)
HSL	hsl(234, 66%, 22%)
HSV	hsv(234, 80%, 37%)
CMYK	cmyk(79.8%, 71.3%, 0%, 63.1%)
CIE-LAB	lab(14.00, 22.87, -40.80)
CIE-LCH	lch(14.00, 46.77, 299.27°)
OKLab	oklab(26.79% 0.0011 -0.118)
OKLCH	oklch(26.79% 0.118 270.5)
XYZ	xyz(2.6802, 1.7302, 10.7802)
Luminance	0.0173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B5E #5E5613

analogous

#13415E #131B5E #31135E

triadic

#131B5E #5E131B #1B5E13

tetradic

#131B5E #5E1341 #5E5613 #135E31

square

#131B5E #5E1341 #5E5613 #135E31

split-complementary

#131B5E #5E3113 #415E13

monochromatic

#050719 #090C2B #131B5E #1D2A91 #2838C4

Accessibility & contrast

On white

15.60

#131B5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#131B5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B5E

15.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B5E	#FFFFFF	#000000	##FFFFFF
##131B5E	1.00	15.60	1.35	15.60
#FFFFFF	15.60	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002760

Deuteranopia (green-blind)

#00205D

Tritanopia (blue-blind)

#002D3A

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #131b5e;
/* rgb */ color: rgb(19, 27, 94);
/* oklch */ color: oklch(26.8% 0.118 270.5);

Tailwind

colors: {
  custom: {
    50: '#5e578c',
    500: '#131b5e',
    950: '#000000',
  },
}

SCSS

$custom: #131b5e;
$custom-light: #5e578c;
$custom-dark: #000000;

JSON

{
  "hex": "#131b5e",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 94
  },
  "hsl": {
    "h": 233.6,
    "s": 66.372,
    "l": 22.157
  },
  "oklch": {
    "l": 0.26787,
    "c": 0.11801,
    "h": 270.5
  },
  "luminance": 0.0173
}

Semantic roles & 50–950 ramp

primary

#131B5E

secondary

#968C37

accent

#D73FE9

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #131B5E

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

Preview Lab → · Contrast checker → · Palette generator →