#191F2B#191F2B

#191F2B is a very dark, muted blue. Relative luminance 0.014; OKLCH L 23.9% C 0.025 H 263.9°. Best body text is #FFFFFF at 16.51:1 contrast (WCAG AA passes).

Color values

HEX	#191F2B
RGB	rgb(25, 31, 43)
HSL	hsl(220, 26%, 13%)
HSV	hsv(220, 42%, 17%)
CMYK	cmyk(41.9%, 27.9%, 0%, 83.1%)
CIE-LAB	lab(11.70, 1.01, -8.92)
CIE-LCH	lch(11.70, 8.98, 276.48°)
OKLab	oklab(23.91% -0.0026 -0.0247)
OKLCH	oklch(23.91% 0.025 263.9)
XYZ	xyz(1.3268, 1.3610, 2.4778)
Luminance	0.0136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191F2B #2B2519

analogous

#19282B #191F2B #1C192B

triadic

#191F2B #2B191F #1F2B19

tetradic

#191F2B #2B1928 #2B2519 #192B1C

square

#191F2B #2B1928 #2B2519 #192B1C

split-complementary

#191F2B #2B1C19 #282B19

monochromatic

#0B0E13 #0B0E13 #191F2B #2F3B52 #465778

Accessibility & contrast

On white

16.51

#191F2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#191F2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191F2B

16.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191F2B	#FFFFFF	#000000	##FFFFFF
##191F2B	1.00	16.51	1.27	16.51
#FFFFFF	16.51	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B202C

Deuteranopia (green-blind)

#191E2B

Tritanopia (blue-blind)

#142123

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #191f2b;
/* rgb */ color: rgb(25, 31, 43);
/* oklch */ color: oklch(23.9% 0.025 263.9);

Tailwind

colors: {
  custom: {
    50: '#565a64',
    500: '#191f2b',
    950: '#000000',
  },
}

SCSS

$custom: #191f2b;
$custom-light: #565a64;
$custom-dark: #000000;

JSON

{
  "hex": "#191f2b",
  "rgb": {
    "r": 25,
    "g": 31,
    "b": 43
  },
  "hsl": {
    "h": 220,
    "s": 26.471,
    "l": 13.333
  },
  "oklch": {
    "l": 0.23906,
    "c": 0.02482,
    "h": 263.9
  },
  "luminance": 0.01361
}

Semantic roles & 50–950 ramp

primary

#191F2B

secondary

#5F5541

accent

#A465C3

background

#F5F5F5

surface

#E9E9EA

border

#C5C5C6

text

#030305

muted

#787879

Preview Lab

Preview with #191F2B

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

Preview Lab → · Contrast checker → · Palette generator →