#191B52#191B52

#191B52 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.0% C 0.098 H 275.6°. Best body text is #FFFFFF at 15.91:1 contrast (WCAG AA passes).

Color values

HEX	#191B52
RGB	rgb(25, 27, 82)
HSL	hsl(238, 53%, 21%)
HSV	hsv(238, 70%, 32%)
CMYK	cmyk(69.5%, 67.1%, 0%, 67.8%)
CIE-LAB	lab(13.23, 18.96, -33.96)
CIE-LCH	lch(13.23, 38.89, 299.18°)
OKLab	oklab(25.96% 0.0095 -0.0978)
OKLCH	oklch(25.96% 0.098 275.6)
XYZ	xyz(2.3153, 1.5995, 8.1677)
Luminance	0.0160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B52 #525019

analogous

#193752 #191B52 #331952

triadic

#191B52 #52191B #1B5219

tetradic

#191B52 #521937 #525019 #195233

square

#191B52 #521937 #525019 #195233

split-complementary

#191B52 #523319 #375219

monochromatic

#070817 #0B0C23 #191B52 #272A81 #363AB0

Accessibility & contrast

On white

15.91

#191B52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#191B52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B52

15.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B52	#FFFFFF	#000000	##FFFFFF
##191B52	1.00	15.91	1.32	15.91
#FFFFFF	15.91	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002554

Deuteranopia (green-blind)

#002051

Tritanopia (blue-blind)

#002933

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #191b52;
/* rgb */ color: rgb(25, 27, 82);
/* oklch */ color: oklch(26.0% 0.098 275.6);

Tailwind

colors: {
  custom: {
    50: '#5e5783',
    500: '#191b52',
    950: '#000000',
  },
}

SCSS

$custom: #191b52;
$custom-light: #5e5783;
$custom-dark: #000000;

JSON

{
  "hex": "#191b52",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 82
  },
  "hsl": {
    "h": 237.895,
    "s": 53.271,
    "l": 20.98
  },
  "oklch": {
    "l": 0.25963,
    "c": 0.09825,
    "h": 275.6
  },
  "luminance": 0.016
}

Semantic roles & 50–950 ramp

primary

#191B52

secondary

#88863E

accent

#D84BDD

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #191B52

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

Preview Lab → · Contrast checker → · Palette generator →