#191D3D#191D3D

#191D3D is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.6% C 0.061 H 275.6°. Best body text is #FFFFFF at 16.35:1 contrast (WCAG AA passes).

Color values

HEX	#191D3D
RGB	rgb(25, 29, 61)
HSL	hsl(233, 42%, 17%)
HSV	hsv(233, 59%, 24%)
CMYK	cmyk(59%, 52.5%, 0%, 76.1%)
CIE-LAB	lab(12.10, 9.16, -21.20)
CIE-LCH	lch(12.10, 23.09, 293.38°)
OKLab	oklab(24.58% 0.006 -0.0603)
OKLCH	oklch(24.58% 0.061 275.6)
XYZ	xyz(1.6823, 1.4222, 4.5998)
Luminance	0.0142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191D3D #3D3919

analogous

#192F3D #191D3D #27193D

triadic

#191D3D #3D191D #1D3D19

tetradic

#191D3D #3D192F #3D3919 #193D27

square

#191D3D #3D192F #3D3919 #193D27

split-complementary

#191D3D #3D2719 #2F3D19

monochromatic

#090A16 #090A16 #191D3D #2B3268 #3D4694

Accessibility & contrast

On white

16.35

#191D3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#191D3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191D3D

16.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191D3D	#FFFFFF	#000000	##FFFFFF
##191D3D	1.00	16.35	1.28	16.35
#FFFFFF	16.35	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F213E

Deuteranopia (green-blind)

#0B1E3C

Tritanopia (blue-blind)

#0A242A

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #191d3d;
/* rgb */ color: rgb(25, 29, 61);
/* oklch */ color: oklch(24.6% 0.061 275.6);

Tailwind

colors: {
  custom: {
    50: '#595873',
    500: '#191d3d',
    950: '#000000',
  },
}

SCSS

$custom: #191d3d;
$custom-light: #595873;
$custom-dark: #000000;

JSON

{
  "hex": "#191d3d",
  "rgb": {
    "r": 25,
    "g": 29,
    "b": 61
  },
  "hsl": {
    "h": 233.333,
    "s": 41.86,
    "l": 16.863
  },
  "oklch": {
    "l": 0.24576,
    "c": 0.06056,
    "h": 275.6
  },
  "luminance": 0.01422
}

Semantic roles & 50–950 ramp

primary

#191D3D

secondary

#736D3F

accent

#C456D2

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030308

muted

#78787B

Preview Lab

Preview with #191D3D

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

Preview Lab → · Contrast checker → · Palette generator →