#191840#191840

#191840 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.7% C 0.074 H 280.2°. Best body text is #FFFFFF at 16.85:1 contrast (WCAG AA passes).

Color values

HEX	#191840
RGB	rgb(25, 24, 64)
HSL	hsl(242, 45%, 17%)
HSV	hsv(242, 63%, 25%)
CMYK	cmyk(60.9%, 62.5%, 0%, 74.9%)
CIE-LAB	lab(10.78, 14.12, -25.45)
CIE-LCH	lch(10.78, 29.11, 299.02°)
OKLab	oklab(23.65% 0.0132 -0.0728)
OKLCH	oklch(23.65% 0.074 280.2)
XYZ	xyz(1.6527, 1.2300, 4.9998)
Luminance	0.0123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191840 #3F4018

analogous

#182B40 #191840 #2D1840

triadic

#191840 #401918 #184019

tetradic

#191840 #40182B #3F4018 #18402D

square

#191840 #40182B #3F4018 #18402D

split-complementary

#191840 #402D18 #2B4018

monochromatic

#090816 #090816 #191840 #2A296D #3C3999

Accessibility & contrast

On white

16.85

#191840 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#191840 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191840

16.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191840	#FFFFFF	#000000	##FFFFFF
##191840	1.00	16.85	1.25	16.85
#FFFFFF	16.85	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021F41

Deuteranopia (green-blind)

#001C3F

Tritanopia (blue-blind)

#082129

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #191840;
/* rgb */ color: rgb(25, 24, 64);
/* oklch */ color: oklch(23.7% 0.074 280.2);

Tailwind

colors: {
  custom: {
    50: '#5a5475',
    500: '#191840',
    950: '#000000',
  },
}

SCSS

$custom: #191840;
$custom-light: #5a5475;
$custom-dark: #000000;

JSON

{
  "hex": "#191840",
  "rgb": {
    "r": 25,
    "g": 24,
    "b": 64
  },
  "hsl": {
    "h": 241.5,
    "s": 45.455,
    "l": 17.255
  },
  "oklch": {
    "l": 0.23651,
    "c": 0.07399,
    "h": 280.2
  },
  "luminance": 0.0123
}

Semantic roles & 50–950 ramp

primary

#191840

secondary

#75773D

accent

#D553D2

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040208

muted

#79787B

Preview Lab

Preview with #191840

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

Preview Lab → · Contrast checker → · Palette generator →