#131B57#131B57

#131B57 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.0% C 0.108 H 270.9°. Best body text is #FFFFFF at 15.89:1 contrast (WCAG AA passes).

Color values

HEX	#131B57
RGB	rgb(19, 27, 87)
HSL	hsl(233, 64%, 21%)
HSV	hsv(233, 78%, 34%)
CMYK	cmyk(78.2%, 69%, 0%, 65.9%)
CIE-LAB	lab(13.29, 20.02, -37.26)
CIE-LCH	lch(13.29, 42.30, 298.25°)
OKLab	oklab(26.05% 0.0016 -0.1076)
OKLCH	oklch(26.05% 0.108 270.9)
XYZ	xyz(2.3802, 1.6102, 9.2003)
Luminance	0.0161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B57 #574F13

analogous

#133D57 #131B57 #2D1357

triadic

#131B57 #57131B #1B5713

tetradic

#131B57 #57133D #574F13 #13572D

square

#131B57 #57133D #574F13 #13572D

split-complementary

#131B57 #572D13 #3D5713

monochromatic

#050819 #080B25 #131B57 #1E2B89 #293ABB

Accessibility & contrast

On white

15.89

#131B57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#131B57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B57

15.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B57	#FFFFFF	#000000	##FFFFFF
##131B57	1.00	15.89	1.32	15.89
#FFFFFF	15.89	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002559

Deuteranopia (green-blind)

#001F56

Tritanopia (blue-blind)

#002B36

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #131b57;
/* rgb */ color: rgb(19, 27, 87);
/* oklch */ color: oklch(26.0% 0.108 270.9);

Tailwind

colors: {
  custom: {
    50: '#5c5787',
    500: '#131b57',
    950: '#000000',
  },
}

SCSS

$custom: #131b57;
$custom-light: #5c5787;
$custom-dark: #000000;

JSON

{
  "hex": "#131b57",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 87
  },
  "hsl": {
    "h": 232.941,
    "s": 64.151,
    "l": 20.784
  },
  "oklch": {
    "l": 0.26049,
    "c": 0.10766,
    "h": 270.9
  },
  "luminance": 0.0161
}

Semantic roles & 50–950 ramp

primary

#131B57

secondary

#8F8536

accent

#D441E7

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #131B57

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

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