#191B6F#191B6F

#191B6F is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.0% C 0.140 H 272.5°. Best body text is #FFFFFF at 14.71:1 contrast (WCAG AA passes).

Color values

HEX	#191B6F
RGB	rgb(25, 27, 111)
HSL	hsl(239, 63%, 27%)
HSV	hsv(239, 77%, 44%)
CMYK	cmyk(77.5%, 75.7%, 0%, 56.5%)
CIE-LAB	lab(16.19, 30.09, -48.37)
CIE-LCH	lch(16.19, 56.96, 301.89°)
OKLab	oklab(29.02% 0.0061 -0.14)
OKLCH	oklch(29.02% 0.14 272.5)
XYZ	xyz(3.6611, 2.1379, 15.2555)
Luminance	0.0214 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B6F #6F6D19

analogous

#19466F #191B6F #42196F

triadic

#191B6F #6F191B #1B6F19

tetradic

#191B6F #6F1946 #6F6D19 #196F42

square

#191B6F #6F1946 #6F6D19 #196F42

split-complementary

#191B6F #6F4219 #466F19

monochromatic

#060619 #0E0F3D #191B6F #2427A1 #3235D1

Accessibility & contrast

On white

14.71

#191B6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#191B6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B6F

14.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B6F	#FFFFFF	#000000	##FFFFFF
##191B6F	1.00	14.71	1.43	14.71
#FFFFFF	14.71	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C71

Deuteranopia (green-blind)

#00246D

Tritanopia (blue-blind)

#003343

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #191b6f;
/* rgb */ color: rgb(25, 27, 111);
/* oklch */ color: oklch(29.0% 0.140 272.5);

Tailwind

colors: {
  custom: {
    50: '#655899',
    500: '#191b6f',
    950: '#000000',
  },
}

SCSS

$custom: #191b6f;
$custom-light: #655899;
$custom-dark: #000000;

JSON

{
  "hex": "#191b6f",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 111
  },
  "hsl": {
    "h": 238.605,
    "s": 63.235,
    "l": 26.667
  },
  "oklch": {
    "l": 0.29019,
    "c": 0.14009,
    "h": 272.5
  },
  "luminance": 0.02138
}

Semantic roles & 50–950 ramp

primary

#191B6F

secondary

#A4A23F

accent

#E242E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #191B6F

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

Preview Lab → · Contrast checker → · Palette generator →