#191B7B#191B7B

#191B7B is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.4% C 0.156 H 271.4°. Best body text is #FFFFFF at 14.15:1 contrast (WCAG AA passes).

Color values

HEX	#191B7B
RGB	rgb(25, 27, 123)
HSL	hsl(239, 66%, 29%)
HSV	hsv(239, 80%, 48%)
CMYK	cmyk(79.7%, 78%, 0%, 51.8%)
CIE-LAB	lab(17.55, 34.45, -53.86)
CIE-LCH	lch(17.55, 63.93, 302.61°)
OKLab	oklab(30.39% 0.0039 -0.1559)
OKLCH	oklch(30.39% 0.156 271.4)
XYZ	xyz(4.3668, 2.4201, 18.9720)
Luminance	0.0242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B7B #7B7919

analogous

#194C7B #191B7B #48197B

triadic

#191B7B #7B191B #1B7B19

tetradic

#191B7B #7B194C #7B7919 #197B48

square

#191B7B #7B194C #7B7919 #197B48

split-complementary

#191B7B #7B4819 #4C7B19

monochromatic

#050619 #0F1048 #191B7B #2326AE #383BD7

Accessibility & contrast

On white

14.15

#191B7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#191B7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B7B

14.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B7B	#FFFFFF	#000000	##FFFFFF
##191B7B	1.00	14.15	1.48	14.15
#FFFFFF	14.15	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307E

Deuteranopia (green-blind)

#002679

Tritanopia (blue-blind)

#00374A

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #191b7b;
/* rgb */ color: rgb(25, 27, 123);
/* oklch */ color: oklch(30.4% 0.156 271.4);

Tailwind

colors: {
  custom: {
    50: '#6959a2',
    500: '#191b7b',
    950: '#000000',
  },
}

SCSS

$custom: #191b7b;
$custom-light: #6959a2;
$custom-dark: #000000;

JSON

{
  "hex": "#191b7b",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 123
  },
  "hsl": {
    "h": 238.776,
    "s": 66.216,
    "l": 29.02
  },
  "oklch": {
    "l": 0.30389,
    "c": 0.15598,
    "h": 271.4
  },
  "luminance": 0.02421
}

Semantic roles & 50–950 ramp

primary

#191B7B

secondary

#AFAD40

accent

#E63FE9

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #191B7B

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

Preview Lab → · Contrast checker → · Palette generator →