#191C3F#191C3F

#191C3F is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.5% C 0.066 H 276.7°. Best body text is #FFFFFF at 16.42:1 contrast (WCAG AA passes).

Color values

HEX	#191C3F
RGB	rgb(25, 28, 63)
HSL	hsl(235, 43%, 17%)
HSV	hsv(235, 60%, 25%)
CMYK	cmyk(60.3%, 55.6%, 0%, 75.3%)
CIE-LAB	lab(11.93, 10.70, -22.89)
CIE-LCH	lch(11.93, 25.27, 295.06°)
OKLab	oklab(24.49% 0.0077 -0.0652)
OKLCH	oklch(24.49% 0.066 276.7)
XYZ	xyz(1.7131, 1.3960, 4.8808)
Luminance	0.0140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191C3F #3F3C19

analogous

#192F3F #191C3F #29193F

triadic

#191C3F #3F191C #1C3F19

tetradic

#191C3F #3F192F #3F3C19 #193F29

square

#191C3F #3F192F #3F3C19 #193F29

split-complementary

#191C3F #3F2919 #2F3F19

monochromatic

#090A16 #090A16 #191C3F #2A2F6B #3C4397

Accessibility & contrast

On white

16.42

#191C3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#191C3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191C3F

16.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191C3F	#FFFFFF	#000000	##FFFFFF
##191C3F	1.00	16.42	1.28	16.42
#FFFFFF	16.42	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C2140

Deuteranopia (green-blind)

#071E3E

Tritanopia (blue-blind)

#08242A

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #191c3f;
/* rgb */ color: rgb(25, 28, 63);
/* oklch */ color: oklch(24.5% 0.066 276.7);

Tailwind

colors: {
  custom: {
    50: '#595774',
    500: '#191c3f',
    950: '#000000',
  },
}

SCSS

$custom: #191c3f;
$custom-light: #595774;
$custom-dark: #000000;

JSON

{
  "hex": "#191c3f",
  "rgb": {
    "r": 25,
    "g": 28,
    "b": 63
  },
  "hsl": {
    "h": 235.263,
    "s": 43.182,
    "l": 17.255
  },
  "oklch": {
    "l": 0.24491,
    "c": 0.06569,
    "h": 276.7
  },
  "luminance": 0.01396
}

Semantic roles & 50–950 ramp

primary

#191C3F

secondary

#75713F

accent

#C955D3

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040308

muted

#79787B

Preview Lab

Preview with #191C3F

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

Preview Lab → · Contrast checker → · Palette generator →