#191F54#191F54

#191F54 is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.0% C 0.096 H 273.3°. Best body text is #FFFFFF at 15.38:1 contrast (WCAG AA passes).

Color values

HEX	#191F54
RGB	rgb(25, 31, 84)
HSL	hsl(234, 54%, 21%)
HSV	hsv(234, 70%, 33%)
CMYK	cmyk(70.2%, 63.1%, 0%, 67.1%)
CIE-LAB	lab(14.55, 16.83, -33.16)
CIE-LCH	lch(14.55, 37.19, 296.91°)
OKLab	oklab(27% 0.0055 -0.0954)
OKLCH	oklch(27% 0.096 273.3)
XYZ	xyz(2.4906, 1.8265, 8.6071)
Luminance	0.0183 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191F54 #544E19

analogous

#193D54 #191F54 #311954

triadic

#191F54 #54191F #1F5419

tetradic

#191F54 #54193D #544E19 #195431

square

#191F54 #54193D #544E19 #195431

split-complementary

#191F54 #543119 #3D5419

monochromatic

#070918 #0B0E25 #191F54 #273083 #3542B2

Accessibility & contrast

On white

15.38

#191F54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#191F54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191F54

15.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191F54	#FFFFFF	#000000	##FFFFFF
##191F54	1.00	15.38	1.37	15.38
#FFFFFF	15.38	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002756

Deuteranopia (green-blind)

#002253

Tritanopia (blue-blind)

#002C36

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #191f54;
/* rgb */ color: rgb(25, 31, 84);
/* oklch */ color: oklch(27.0% 0.096 273.3);

Tailwind

colors: {
  custom: {
    50: '#5e5a85',
    500: '#191f54',
    950: '#000000',
  },
}

SCSS

$custom: #191f54;
$custom-light: #5e5a85;
$custom-dark: #000000;

JSON

{
  "hex": "#191f54",
  "rgb": {
    "r": 25,
    "g": 31,
    "b": 84
  },
  "hsl": {
    "h": 233.898,
    "s": 54.128,
    "l": 21.373
  },
  "oklch": {
    "l": 0.26997,
    "c": 0.09558,
    "h": 273.3
  },
  "luminance": 0.01827
}

Semantic roles & 50–950 ramp

primary

#191F54

secondary

#8A833E

accent

#CF4ADD

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #191F54

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

Preview Lab → · Contrast checker → · Palette generator →