#191B64#191B64

#191B64 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.8% C 0.125 H 273.6°. Best body text is #FFFFFF at 15.19:1 contrast (WCAG AA passes).

Color values

HEX	#191B64
RGB	rgb(25, 27, 100)
HSL	hsl(238, 60%, 25%)
HSV	hsv(238, 75%, 39%)
CMYK	cmyk(75%, 73%, 0%, 60.8%)
CIE-LAB	lab(15.01, 25.96, -43.11)
CIE-LCH	lch(15.01, 50.32, 301.05°)
OKLab	oklab(27.81% 0.0078 -0.1246)
OKLCH	oklch(27.81% 0.125 273.6)
XYZ	xyz(3.0923, 1.9103, 12.2599)
Luminance	0.0191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B64 #646219

analogous

#194164 #191B64 #3D1964

triadic

#191B64 #64191B #1B6419

tetradic

#191B64 #641941 #646219 #19643D

square

#191B64 #641941 #646219 #19643D

split-complementary

#191B64 #643D19 #416419

monochromatic

#060718 #0D0E33 #191B64 #252895 #3135C6

Accessibility & contrast

On white

15.19

#191B64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#191B64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B64

15.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B64	#FFFFFF	#000000	##FFFFFF
##191B64	1.00	15.19	1.38	15.19
#FFFFFF	15.19	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002966

Deuteranopia (green-blind)

#002263

Tritanopia (blue-blind)

#002F3D

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #191b64;
/* rgb */ color: rgb(25, 27, 100);
/* oklch */ color: oklch(27.8% 0.125 273.6);

Tailwind

colors: {
  custom: {
    50: '#625891',
    500: '#191b64',
    950: '#000000',
  },
}

SCSS

$custom: #191b64;
$custom-light: #625891;
$custom-dark: #000000;

JSON

{
  "hex": "#191b64",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 100
  },
  "hsl": {
    "h": 238.4,
    "s": 60,
    "l": 24.51
  },
  "oklch": {
    "l": 0.2781,
    "c": 0.12486,
    "h": 273.6
  },
  "luminance": 0.01911
}

Semantic roles & 50–950 ramp

primary

#191B64

secondary

#9A983F

accent

#DF45E3

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #191B64

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

Preview Lab → · Contrast checker → · Palette generator →