#191B6E#191B6E

#191B6E is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.9% C 0.139 H 272.6°. Best body text is #FFFFFF at 14.76:1 contrast (WCAG AA passes).

Color values

HEX	#191B6E
RGB	rgb(25, 27, 110)
HSL	hsl(239, 63%, 26%)
HSV	hsv(239, 77%, 43%)
CMYK	cmyk(77.3%, 75.5%, 0%, 56.9%)
CIE-LAB	lab(16.08, 29.72, -47.90)
CIE-LCH	lch(16.08, 56.37, 301.82°)
OKLab	oklab(28.91% 0.0062 -0.1386)
OKLCH	oklch(28.91% 0.139 272.6)
XYZ	xyz(3.6064, 2.1160, 14.9672)
Luminance	0.0212 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B6E #6E6C19

analogous

#19466E #191B6E #42196E

triadic

#191B6E #6E191B #1B6E19

tetradic

#191B6E #6E1946 #6E6C19 #196E42

square

#191B6E #6E1946 #6E6C19 #196E42

split-complementary

#191B6E #6E4219 #466E19

monochromatic

#060619 #0E0F3C #191B6E #2427A0 #3135D0

Accessibility & contrast

On white

14.76

#191B6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#191B6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B6E

14.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B6E	#FFFFFF	#000000	##FFFFFF
##191B6E	1.00	14.76	1.42	14.76
#FFFFFF	14.76	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C70

Deuteranopia (green-blind)

#00246C

Tritanopia (blue-blind)

#003242

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #191b6e;
/* rgb */ color: rgb(25, 27, 110);
/* oklch */ color: oklch(28.9% 0.139 272.6);

Tailwind

colors: {
  custom: {
    50: '#655899',
    500: '#191b6e',
    950: '#000000',
  },
}

SCSS

$custom: #191b6e;
$custom-light: #655899;
$custom-dark: #000000;

JSON

{
  "hex": "#191b6e",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 110
  },
  "hsl": {
    "h": 238.588,
    "s": 62.963,
    "l": 26.471
  },
  "oklch": {
    "l": 0.28907,
    "c": 0.13874,
    "h": 272.6
  },
  "luminance": 0.02116
}

Semantic roles & 50–950 ramp

primary

#191B6E

secondary

#A3A13F

accent

#E242E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #191B6E

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

Preview Lab → · Contrast checker → · Palette generator →