#191B54#191B54

#191B54 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.2% C 0.101 H 275.3°. Best body text is #FFFFFF at 15.83:1 contrast (WCAG AA passes).

Color values

HEX	#191B54
RGB	rgb(25, 27, 84)
HSL	hsl(238, 54%, 21%)
HSV	hsv(238, 70%, 33%)
CMYK	cmyk(70.2%, 67.9%, 0%, 67.1%)
CIE-LAB	lab(13.41, 19.75, -35.01)
CIE-LCH	lch(13.41, 40.20, 299.43°)
OKLab	oklab(26.16% 0.0094 -0.1009)
OKLCH	oklch(26.16% 0.101 275.3)
XYZ	xyz(2.3925, 1.6304, 8.5744)
Luminance	0.0163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B54 #545219

analogous

#193954 #191B54 #351954

triadic

#191B54 #54191B #1B5419

tetradic

#191B54 #541939 #545219 #195435

square

#191B54 #541939 #545219 #195435

split-complementary

#191B54 #543519 #395419

monochromatic

#070818 #0B0C25 #191B54 #272A83 #3539B2

Accessibility & contrast

On white

15.83

#191B54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#191B54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B54

15.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B54	#FFFFFF	#000000	##FFFFFF
##191B54	1.00	15.83	1.33	15.83
#FFFFFF	15.83	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002556

Deuteranopia (green-blind)

#002053

Tritanopia (blue-blind)

#002934

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #191b54;
/* rgb */ color: rgb(25, 27, 84);
/* oklch */ color: oklch(26.2% 0.101 275.3);

Tailwind

colors: {
  custom: {
    50: '#5e5785',
    500: '#191b54',
    950: '#000000',
  },
}

SCSS

$custom: #191b54;
$custom-light: #5e5785;
$custom-dark: #000000;

JSON

{
  "hex": "#191b54",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 84
  },
  "hsl": {
    "h": 237.966,
    "s": 54.128,
    "l": 21.373
  },
  "oklch": {
    "l": 0.26159,
    "c": 0.10133,
    "h": 275.3
  },
  "luminance": 0.01631
}

Semantic roles & 50–950 ramp

primary

#191B54

secondary

#8A883E

accent

#D94ADD

background

#F5F5F8

surface

#EAE9EF

border

#C6C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #191B54

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

Preview Lab → · Contrast checker → · Palette generator →