#191B8D#191B8D

#191B8D is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.179 H 270.1°. Best body text is #FFFFFF at 13.27:1 contrast (WCAG AA passes).

Color values

HEX	#191B8D
RGB	rgb(25, 27, 141)
HSL	hsl(239, 70%, 33%)
HSV	hsv(239, 82%, 55%)
CMYK	cmyk(82.3%, 80.9%, 0%, 44.7%)
CIE-LAB	lab(19.69, 40.70, -61.68)
CIE-LCH	lch(19.69, 73.90, 303.42°)
OKLab	oklab(32.52% 0.0004 -0.1786)
OKLCH	oklch(32.52% 0.179 270.1)
XYZ	xyz(5.5989, 2.9130, 25.4613)
Luminance	0.0291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B8D #8D8B19

analogous

#19558D #191B8D #51198D

triadic

#191B8D #8D191B #1B8D19

tetradic

#191B8D #8D1955 #8D8B19 #198D51

square

#191B8D #8D1955 #8D8B19 #198D51

split-complementary

#191B8D #8D5119 #558D19

monochromatic

#070725 #101159 #191B8D #2225C1 #4345DE

Accessibility & contrast

On white

13.27

#191B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#191B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B8D

13.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B8D	#FFFFFF	#000000	##FFFFFF
##191B8D	1.00	13.27	1.58	13.27
#FFFFFF	13.27	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003590

Deuteranopia (green-blind)

#002A8B

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #191b8d;
/* rgb */ color: rgb(25, 27, 141);
/* oklch */ color: oklch(32.5% 0.179 270.1);

Tailwind

colors: {
  custom: {
    50: '#6e5ab0',
    500: '#191b8d',
    950: '#000000',
  },
}

SCSS

$custom: #191b8d;
$custom-light: #6e5ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#191b8d",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 141
  },
  "hsl": {
    "h": 238.966,
    "s": 69.88,
    "l": 32.549
  },
  "oklch": {
    "l": 0.3252,
    "c": 0.17862,
    "h": 270.1
  },
  "luminance": 0.02914
}

Semantic roles & 50–950 ramp

primary

#191B8D

secondary

#BFBC43

accent

#EA3BED

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #191B8D

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

Preview Lab → · Contrast checker → · Palette generator →