#191D3F#191D3F

#191D3F is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.7% C 0.064 H 275.6°. Best body text is #FFFFFF at 16.29:1 contrast (WCAG AA passes).

Color values

HEX	#191D3F
RGB	rgb(25, 29, 63)
HSL	hsl(234, 43%, 17%)
HSV	hsv(234, 60%, 25%)
CMYK	cmyk(60.3%, 54%, 0%, 75.3%)
CIE-LAB	lab(12.25, 9.94, -22.38)
CIE-LCH	lch(12.25, 24.49, 293.96°)
OKLab	oklab(24.73% 0.0063 -0.0637)
OKLCH	oklch(24.73% 0.064 275.6)
XYZ	xyz(1.7372, 1.4442, 4.8889)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191D3F #3F3B19

analogous

#19303F #191D3F #28193F

triadic

#191D3F #3F191D #1D3F19

tetradic

#191D3F #3F1930 #3F3B19 #193F28

square

#191D3F #3F1930 #3F3B19 #193F28

split-complementary

#191D3F #3F2819 #303F19

monochromatic

#090A16 #090A16 #191D3F #2A316B #3C4597

Accessibility & contrast

On white

16.29

#191D3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#191D3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191D3F

16.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191D3F	#FFFFFF	#000000	##FFFFFF
##191D3F	1.00	16.29	1.29	16.29
#FFFFFF	16.29	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E2240

Deuteranopia (green-blind)

#091F3E

Tritanopia (blue-blind)

#08242A

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #191d3f;
/* rgb */ color: rgb(25, 29, 63);
/* oklch */ color: oklch(24.7% 0.064 275.6);

Tailwind

colors: {
  custom: {
    50: '#595874',
    500: '#191d3f',
    950: '#000000',
  },
}

SCSS

$custom: #191d3f;
$custom-light: #595874;
$custom-dark: #000000;

JSON

{
  "hex": "#191d3f",
  "rgb": {
    "r": 25,
    "g": 29,
    "b": 63
  },
  "hsl": {
    "h": 233.684,
    "s": 43.182,
    "l": 17.255
  },
  "oklch": {
    "l": 0.24732,
    "c": 0.06404,
    "h": 275.6
  },
  "luminance": 0.01444
}

Semantic roles & 50–950 ramp

primary

#191D3F

secondary

#756F3F

accent

#C655D3

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040308

muted

#79787B

Preview Lab

Preview with #191D3F

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

Preview Lab → · Contrast checker → · Palette generator →