#191A3F#191A3F

#191A3F is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.0% C 0.069 H 278.7°. Best body text is #FFFFFF at 16.66:1 contrast (WCAG AA passes).

Color values

HEX	#191A3F
RGB	rgb(25, 26, 63)
HSL	hsl(238, 43%, 17%)
HSV	hsv(238, 60%, 25%)
CMYK	cmyk(60.3%, 58.7%, 0%, 75.3%)
CIE-LAB	lab(11.30, 12.22, -23.89)
CIE-LCH	lch(11.30, 26.84, 297.09°)
OKLab	oklab(24.02% 0.0104 -0.0682)
OKLCH	oklch(24.02% 0.069 278.7)
XYZ	xyz(1.6672, 1.3042, 4.8656)
Luminance	0.0130 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191A3F #3F3E19

analogous

#192D3F #191A3F #2B193F

triadic

#191A3F #3F191A #1A3F19

tetradic

#191A3F #3F192D #3F3E19 #193F2B

square

#191A3F #3F192D #3F3E19 #193F2B

split-complementary

#191A3F #3F2B19 #2D3F19

monochromatic

#090916 #090916 #191A3F #2A2C6B #3C3E97

Accessibility & contrast

On white

16.66

#191A3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#191A3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191A3F

16.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191A3F	#FFFFFF	#000000	##FFFFFF
##191A3F	1.00	16.66	1.26	16.66
#FFFFFF	16.66	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#072040

Deuteranopia (green-blind)

#041D3E

Tritanopia (blue-blind)

#082229

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #191a3f;
/* rgb */ color: rgb(25, 26, 63);
/* oklch */ color: oklch(24.0% 0.069 278.7);

Tailwind

colors: {
  custom: {
    50: '#595674',
    500: '#191a3f',
    950: '#000000',
  },
}

SCSS

$custom: #191a3f;
$custom-light: #595674;
$custom-dark: #000000;

JSON

{
  "hex": "#191a3f",
  "rgb": {
    "r": 25,
    "g": 26,
    "b": 63
  },
  "hsl": {
    "h": 238.421,
    "s": 43.182,
    "l": 17.255
  },
  "oklch": {
    "l": 0.2402,
    "c": 0.069,
    "h": 278.7
  },
  "luminance": 0.01304
}

Semantic roles & 50–950 ramp

primary

#191A3F

secondary

#75743F

accent

#D055D3

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040308

muted

#79787B

Preview Lab

Preview with #191A3F

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

Preview Lab → · Contrast checker → · Palette generator →