#131D57#131D57

#131D57 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.5% C 0.105 H 270.0°. Best body text is #FFFFFF at 15.66:1 contrast (WCAG AA passes).

Color values

HEX	#131D57
RGB	rgb(19, 29, 87)
HSL	hsl(231, 64%, 21%)
HSV	hsv(231, 78%, 34%)
CMYK	cmyk(78.2%, 66.7%, 0%, 65.9%)
CIE-LAB	lab(13.86, 18.56, -36.34)
CIE-LCH	lch(13.86, 40.80, 297.05°)
OKLab	oklab(26.47% 0.0001 -0.1049)
OKLCH	oklch(26.47% 0.105 270)
XYZ	xyz(2.4276, 1.7050, 9.2161)
Luminance	0.0170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D57 #574D13

analogous

#133F57 #131D57 #2B1357

triadic

#131D57 #57131D #1D5713

tetradic

#131D57 #57133F #574D13 #13572B

square

#131D57 #57133F #574D13 #13572B

split-complementary

#131D57 #572B13 #3F5713

monochromatic

#050819 #080C25 #131D57 #1E2E89 #293EBB

Accessibility & contrast

On white

15.66

#131D57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#131D57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D57

15.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D57	#FFFFFF	#000000	##FFFFFF
##131D57	1.00	15.66	1.34	15.66
#FFFFFF	15.66	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002759

Deuteranopia (green-blind)

#002056

Tritanopia (blue-blind)

#002C36

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #131d57;
/* rgb */ color: rgb(19, 29, 87);
/* oklch */ color: oklch(26.5% 0.105 270.0);

Tailwind

colors: {
  custom: {
    50: '#5c5887',
    500: '#131d57',
    950: '#000000',
  },
}

SCSS

$custom: #131d57;
$custom-light: #5c5887;
$custom-dark: #000000;

JSON

{
  "hex": "#131d57",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 87
  },
  "hsl": {
    "h": 231.176,
    "s": 64.151,
    "l": 20.784
  },
  "oklch": {
    "l": 0.26465,
    "c": 0.10493,
    "h": 270
  },
  "luminance": 0.01705
}

Semantic roles & 50–950 ramp

primary

#131D57

secondary

#8F8236

accent

#CF41E7

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #131D57

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

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