#191B77#191B77

#191B77 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.9% C 0.151 H 271.8°. Best body text is #FFFFFF at 14.34:1 contrast (WCAG AA passes).

Color values

HEX	#191B77
RGB	rgb(25, 27, 119)
HSL	hsl(239, 65%, 28%)
HSV	hsv(239, 79%, 47%)
CMYK	cmyk(79%, 77.3%, 0%, 53.3%)
CIE-LAB	lab(17.09, 33.02, -52.05)
CIE-LCH	lch(17.09, 61.64, 302.39°)
OKLab	oklab(29.93% 0.0046 -0.1507)
OKLCH	oklch(29.93% 0.151 271.8)
XYZ	xyz(4.1215, 2.3220, 17.6802)
Luminance	0.0232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B77 #777519

analogous

#194A77 #191B77 #461977

triadic

#191B77 #77191B #1B7719

tetradic

#191B77 #77194A #777519 #197746

square

#191B77 #77194A #777519 #197746

split-complementary

#191B77 #774619 #4A7719

monochromatic

#050619 #0E1044 #191B77 #2426AA #3639D5

Accessibility & contrast

On white

14.34

#191B77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#191B77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B77

14.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B77	#FFFFFF	#000000	##FFFFFF
##191B77	1.00	14.34	1.46	14.34
#FFFFFF	14.34	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7A

Deuteranopia (green-blind)

#002575

Tritanopia (blue-blind)

#003647

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #191b77;
/* rgb */ color: rgb(25, 27, 119);
/* oklch */ color: oklch(29.9% 0.151 271.8);

Tailwind

colors: {
  custom: {
    50: '#68589f',
    500: '#191b77',
    950: '#000000',
  },
}

SCSS

$custom: #191b77;
$custom-light: #68589f;
$custom-dark: #000000;

JSON

{
  "hex": "#191b77",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 119
  },
  "hsl": {
    "h": 238.723,
    "s": 65.278,
    "l": 28.235
  },
  "oklch": {
    "l": 0.29927,
    "c": 0.15076,
    "h": 271.8
  },
  "luminance": 0.02322
}

Semantic roles & 50–950 ramp

primary

#191B77

secondary

#ACA940

accent

#E540E8

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030F

muted

#7A787E

Preview Lab

Preview with #191B77

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

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