#191F8F#191F8F

#191F8F is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.3% C 0.177 H 269.6°. Best body text is #FFFFFF at 12.85:1 contrast (WCAG AA passes).

Color values

HEX	#191F8F
RGB	rgb(25, 31, 143)
HSL	hsl(237, 70%, 33%)
HSV	hsv(237, 83%, 56%)
CMYK	cmyk(82.5%, 78.3%, 0%, 43.9%)
CIE-LAB	lab(20.71, 39.15, -61.24)
CIE-LCH	lch(20.71, 72.69, 302.59°)
OKLab	oklab(33.31% -0.0012 -0.1774)
OKLCH	oklch(33.31% 0.177 269.6)
XYZ	xyz(5.8471, 3.1691, 26.2848)
Luminance	0.0317 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191F8F #8F8919

analogous

#195A8F #191F8F #4E198F

triadic

#191F8F #8F191F #1F8F19

tetradic

#191F8F #8F195A #8F8919 #198F4E

square

#191F8F #8F195A #8F8919 #198F4E

split-complementary

#191F8F #8F4E19 #5A8F19

monochromatic

#070827 #10145B #191F8F #222AC3 #444CDE

Accessibility & contrast

On white

12.85

#191F8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#191F8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191F8F

12.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191F8F	#FFFFFF	#000000	##FFFFFF
##191F8F	1.00	12.85	1.63	12.85
#FFFFFF	12.85	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003892

Deuteranopia (green-blind)

#002C8D

Tritanopia (blue-blind)

#004156

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #191f8f;
/* rgb */ color: rgb(25, 31, 143);
/* oklch */ color: oklch(33.3% 0.177 269.6);

Tailwind

colors: {
  custom: {
    50: '#6e5cb1',
    500: '#191f8f',
    950: '#000000',
  },
}

SCSS

$custom: #191f8f;
$custom-light: #6e5cb1;
$custom-dark: #000000;

JSON

{
  "hex": "#191f8f",
  "rgb": {
    "r": 25,
    "g": 31,
    "b": 143
  },
  "hsl": {
    "h": 236.949,
    "s": 70.238,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33305,
    "c": 0.1774,
    "h": 269.6
  },
  "luminance": 0.0317
}

Semantic roles & 50–950 ramp

primary

#191F8F

secondary

#BFB944

accent

#E43BED

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #191F8F

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

Preview Lab → · Contrast checker → · Palette generator →