#191F9E#191F9E

#191F9E is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.1% C 0.196 H 268.9°. Best body text is #FFFFFF at 12.13:1 contrast (WCAG AA passes).

Color values

HEX	#191F9E
RGB	rgb(25, 31, 158)
HSL	hsl(237, 73%, 36%)
HSV	hsv(237, 84%, 62%)
CMYK	cmyk(84.2%, 80.4%, 0%, 38%)
CIE-LAB	lab(22.49, 44.26, -67.53)
CIE-LCH	lch(22.49, 80.74, 303.24°)
OKLab	oklab(35.08% -0.0039 -0.1956)
OKLCH	oklch(35.08% 0.196 268.9)
XYZ	xyz(7.0603, 3.6544, 32.6744)
Luminance	0.0365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191F9E #9E9819

analogous

#19619E #191F9E #55199E

triadic

#191F9E #9E191F #1F9E19

tetradic

#191F9E #9E1961 #9E9819 #199E55

square

#191F9E #9E1961 #9E9819 #199E55

split-complementary

#191F9E #9E5519 #619E19

monochromatic

#080A34 #111569 #191F9E #2129D3 #4E55E3

Accessibility & contrast

On white

12.13

#191F9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#191F9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191F9E

12.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191F9E	#FFFFFF	#000000	##FFFFFF
##191F9E	1.00	12.13	1.73	12.13
#FFFFFF	12.13	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA2

Deuteranopia (green-blind)

#002F9C

Tritanopia (blue-blind)

#00475F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #191f9e;
/* rgb */ color: rgb(25, 31, 158);
/* oklch */ color: oklch(35.1% 0.196 268.9);

Tailwind

colors: {
  custom: {
    50: '#725dbc',
    500: '#191f9e',
    950: '#000000',
  },
}

SCSS

$custom: #191f9e;
$custom-light: #725dbc;
$custom-dark: #000000;

JSON

{
  "hex": "#191f9e",
  "rgb": {
    "r": 25,
    "g": 31,
    "b": 158
  },
  "hsl": {
    "h": 237.293,
    "s": 72.678,
    "l": 35.882
  },
  "oklch": {
    "l": 0.35079,
    "c": 0.19567,
    "h": 268.9
  },
  "luminance": 0.03655
}

Semantic roles & 50–950 ramp

primary

#191F9E

secondary

#C5C04E

accent

#E738EF

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #191F9E

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

Preview Lab → · Contrast checker → · Palette generator →