#131F58#131F58

#131F58 is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.0% C 0.104 H 269.1°. Best body text is #FFFFFF at 15.39:1 contrast (WCAG AA passes).

Color values

HEX	#131F58
RGB	rgb(19, 31, 88)
HSL	hsl(230, 64%, 21%)
HSV	hsv(230, 78%, 35%)
CMYK	cmyk(78.4%, 64.8%, 0%, 65.5%)
CIE-LAB	lab(14.53, 17.50, -35.91)
CIE-LCH	lch(14.53, 39.95, 295.97°)
OKLab	oklab(26.99% -0.0016 -0.1037)
OKLCH	oklch(26.99% 0.104 269.1)
XYZ	xyz(2.5194, 1.8227, 9.4497)
Luminance	0.0182 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F58 #584C13

analogous

#134158 #131F58 #291358

triadic

#131F58 #58131F #1F5813

tetradic

#131F58 #581341 #584C13 #135829

square

#131F58 #581341 #584C13 #135829

split-complementary

#131F58 #582913 #415813

monochromatic

#050919 #080D26 #131F58 #1E318A #2942BD

Accessibility & contrast

On white

15.39

#131F58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#131F58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F58

15.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F58	#FFFFFF	#000000	##FFFFFF
##131F58	1.00	15.39	1.36	15.39
#FFFFFF	15.39	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00285A

Deuteranopia (green-blind)

#002257

Tritanopia (blue-blind)

#002D38

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #131f58;
/* rgb */ color: rgb(19, 31, 88);
/* oklch */ color: oklch(27.0% 0.104 269.1);

Tailwind

colors: {
  custom: {
    50: '#5c5a88',
    500: '#131f58',
    950: '#000000',
  },
}

SCSS

$custom: #131f58;
$custom-light: #5c5a88;
$custom-dark: #000000;

JSON

{
  "hex": "#131f58",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 88
  },
  "hsl": {
    "h": 229.565,
    "s": 64.486,
    "l": 20.98
  },
  "oklch": {
    "l": 0.26992,
    "c": 0.10367,
    "h": 269.1
  },
  "luminance": 0.01823
}

Semantic roles & 50–950 ramp

primary

#131F58

secondary

#908137

accent

#CA40E7

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #131F58

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

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