#191C5B#191C5B

#191C5B is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.1% C 0.111 H 274.2°. Best body text is #FFFFFF at 15.46:1 contrast (WCAG AA passes).

Color values

HEX	#191C5B
RGB	rgb(25, 28, 91)
HSL	hsl(237, 57%, 23%)
HSV	hsv(237, 73%, 36%)
CMYK	cmyk(72.5%, 69.2%, 0%, 64.3%)
CIE-LAB	lab(14.36, 21.79, -38.19)
CIE-LCH	lch(14.36, 43.97, 299.70°)
OKLab	oklab(27.06% 0.008 -0.1102)
OKLCH	oklch(27.06% 0.111 274.2)
XYZ	xyz(2.7039, 1.7923, 10.0990)
Luminance	0.0179 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191C5B #5B5819

analogous

#193D5B #191C5B #37195B

triadic

#191C5B #5B191C #1C5B19

tetradic

#191C5B #5B193D #5B5819 #195B37

square

#191C5B #5B193D #5B5819 #195B37

split-complementary

#191C5B #5B3719 #3D5B19

monochromatic

#070718 #0C0D2B #191C5B #262B8B #333ABB

Accessibility & contrast

On white

15.46

#191C5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#191C5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191C5B

15.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191C5B	#FFFFFF	#000000	##FFFFFF
##191C5B	1.00	15.46	1.36	15.46
#FFFFFF	15.46	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00275D

Deuteranopia (green-blind)

#00215A

Tritanopia (blue-blind)

#002C38

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #191c5b;
/* rgb */ color: rgb(25, 28, 91);
/* oklch */ color: oklch(27.1% 0.111 274.2);

Tailwind

colors: {
  custom: {
    50: '#60588a',
    500: '#191c5b',
    950: '#000000',
  },
}

SCSS

$custom: #191c5b;
$custom-light: #60588a;
$custom-dark: #000000;

JSON

{
  "hex": "#191c5b",
  "rgb": {
    "r": 25,
    "g": 28,
    "b": 91
  },
  "hsl": {
    "h": 237.273,
    "s": 56.897,
    "l": 22.745
  },
  "oklch": {
    "l": 0.27057,
    "c": 0.11051,
    "h": 274.2
  },
  "luminance": 0.01793
}

Semantic roles & 50–950 ramp

primary

#191C5B

secondary

#918E3F

accent

#D948E0

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #191C5B

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

Preview Lab → · Contrast checker → · Palette generator →