#191B79#191B79

#191B79 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.2% C 0.153 H 271.6°. Best body text is #FFFFFF at 14.25:1 contrast (WCAG AA passes).

Color values

HEX	#191B79
RGB	rgb(25, 27, 121)
HSL	hsl(239, 66%, 29%)
HSV	hsv(239, 79%, 47%)
CMYK	cmyk(79.3%, 77.7%, 0%, 52.5%)
CIE-LAB	lab(17.32, 33.74, -52.96)
CIE-LCH	lch(17.32, 62.79, 302.50°)
OKLab	oklab(30.16% 0.0043 -0.1533)
OKLCH	oklch(30.16% 0.153 271.6)
XYZ	xyz(4.2429, 2.3706, 18.3194)
Luminance	0.0237 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B79 #797719

analogous

#194B79 #191B79 #471979

triadic

#191B79 #79191B #1B7919

tetradic

#191B79 #79194B #797719 #197947

square

#191B79 #79194B #797719 #197947

split-complementary

#191B79 #794719 #4B7919

monochromatic

#050619 #0F1046 #191B79 #2326AC #373AD6

Accessibility & contrast

On white

14.25

#191B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#191B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B79

14.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B79	#FFFFFF	#000000	##FFFFFF
##191B79	1.00	14.25	1.47	14.25
#FFFFFF	14.25	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7C

Deuteranopia (green-blind)

#002677

Tritanopia (blue-blind)

#003749

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #191b79;
/* rgb */ color: rgb(25, 27, 121);
/* oklch */ color: oklch(30.2% 0.153 271.6);

Tailwind

colors: {
  custom: {
    50: '#6859a1',
    500: '#191b79',
    950: '#000000',
  },
}

SCSS

$custom: #191b79;
$custom-light: #6859a1;
$custom-dark: #000000;

JSON

{
  "hex": "#191b79",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 121
  },
  "hsl": {
    "h": 238.75,
    "s": 65.753,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30157,
    "c": 0.15338,
    "h": 271.6
  },
  "luminance": 0.02371
}

Semantic roles & 50–950 ramp

primary

#191B79

secondary

#AEAB40

accent

#E53FE9

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #191B79

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

Preview Lab → · Contrast checker → · Palette generator →