#131D59#131D59

#131D59 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.7% C 0.108 H 270.0°. Best body text is #FFFFFF at 15.58:1 contrast (WCAG AA passes).

Color values

HEX	#131D59
RGB	rgb(19, 29, 89)
HSL	hsl(231, 65%, 21%)
HSV	hsv(231, 79%, 35%)
CMYK	cmyk(78.7%, 67.4%, 0%, 65.1%)
CIE-LAB	lab(14.05, 19.39, -37.37)
CIE-LCH	lch(14.05, 42.10, 297.42°)
OKLab	oklab(26.67% 0 -0.108)
OKLCH	oklch(26.67% 0.108 270)
XYZ	xyz(2.5105, 1.7382, 9.6525)
Luminance	0.0174 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D59 #594F13

analogous

#134059 #131D59 #2C1359

triadic

#131D59 #59131D #1D5913

tetradic

#131D59 #591340 #594F13 #13592C

square

#131D59 #591340 #594F13 #13592C

split-complementary

#131D59 #592C13 #405913

monochromatic

#050819 #080D27 #131D59 #1E2D8B #293EBE

Accessibility & contrast

On white

15.58

#131D59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#131D59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D59

15.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D59	#FFFFFF	#000000	##FFFFFF
##131D59	1.00	15.58	1.35	15.58
#FFFFFF	15.58	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00275B

Deuteranopia (green-blind)

#002058

Tritanopia (blue-blind)

#002C38

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #131d59;
/* rgb */ color: rgb(19, 29, 89);
/* oklch */ color: oklch(26.7% 0.108 270.0);

Tailwind

colors: {
  custom: {
    50: '#5d5889',
    500: '#131d59',
    950: '#000000',
  },
}

SCSS

$custom: #131d59;
$custom-light: #5d5889;
$custom-dark: #000000;

JSON

{
  "hex": "#131d59",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 89
  },
  "hsl": {
    "h": 231.429,
    "s": 64.815,
    "l": 21.176
  },
  "oklch": {
    "l": 0.26667,
    "c": 0.10796,
    "h": 270
  },
  "luminance": 0.01738
}

Semantic roles & 50–950 ramp

primary

#131D59

secondary

#918437

accent

#D040E8

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #131D59

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

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