#191F5A#191F5A

#191F5A is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.6% C 0.105 H 273.0°. Best body text is #FFFFFF at 15.16:1 contrast (WCAG AA passes).

Color values

HEX	#191F5A
RGB	rgb(25, 31, 90)
HSL	hsl(234, 57%, 23%)
HSV	hsv(234, 72%, 35%)
CMYK	cmyk(72.2%, 65.6%, 0%, 64.7%)
CIE-LAB	lab(15.09, 19.24, -36.33)
CIE-LCH	lch(15.09, 41.11, 297.90°)
OKLab	oklab(27.56% 0.0054 -0.1047)
OKLCH	oklch(27.56% 0.105 273)
XYZ	xyz(2.7357, 1.9246, 9.8982)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191F5A #5A5419

analogous

#193F5A #191F5A #34195A

triadic

#191F5A #5A191F #1F5A19

tetradic

#191F5A #5A193F #5A5419 #195A34

square

#191F5A #5A193F #5A5419 #195A34

split-complementary

#191F5A #5A3419 #3F5A19

monochromatic

#070818 #0C0F2A #191F5A #262F8A #3440BA

Accessibility & contrast

On white

15.16

#191F5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#191F5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191F5A

15.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191F5A	#FFFFFF	#000000	##FFFFFF
##191F5A	1.00	15.16	1.39	15.16
#FFFFFF	15.16	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00295C

Deuteranopia (green-blind)

#002359

Tritanopia (blue-blind)

#002E39

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #191f5a;
/* rgb */ color: rgb(25, 31, 90);
/* oklch */ color: oklch(27.6% 0.105 273.0);

Tailwind

colors: {
  custom: {
    50: '#5f5a89',
    500: '#191f5a',
    950: '#000000',
  },
}

SCSS

$custom: #191f5a;
$custom-light: #5f5a89;
$custom-dark: #000000;

JSON

{
  "hex": "#191f5a",
  "rgb": {
    "r": 25,
    "g": 31,
    "b": 90
  },
  "hsl": {
    "h": 234.462,
    "s": 56.522,
    "l": 22.549
  },
  "oklch": {
    "l": 0.27564,
    "c": 0.10487,
    "h": 273
  },
  "luminance": 0.01925
}

Semantic roles & 50–950 ramp

primary

#191F5A

secondary

#90893E

accent

#D248E0

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #191F5A

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

Preview Lab → · Contrast checker → · Palette generator →