#191B6B#191B6B

#191B6B is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.6% C 0.135 H 272.9°. Best body text is #FFFFFF at 14.89:1 contrast (WCAG AA passes).

Color values

HEX	#191B6B
RGB	rgb(25, 27, 107)
HSL	hsl(239, 62%, 26%)
HSV	hsv(239, 77%, 42%)
CMYK	cmyk(76.6%, 74.8%, 0%, 58%)
CIE-LAB	lab(15.76, 28.60, -46.48)
CIE-LCH	lch(15.76, 54.58, 301.60°)
OKLab	oklab(28.57% 0.0067 -0.1345)
OKLCH	oklch(28.57% 0.135 272.9)
XYZ	xyz(3.4458, 2.0517, 14.1215)
Luminance	0.0205 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B6B #6B6919

analogous

#19446B #191B6B #40196B

triadic

#191B6B #6B191B #1B6B19

tetradic

#191B6B #6B1944 #6B6919 #196B40

square

#191B6B #6B1944 #6B6919 #196B40

split-complementary

#191B6B #6B4019 #446B19

monochromatic

#060619 #0D0E39 #191B6B #25289D #3034CE

Accessibility & contrast

On white

14.89

#191B6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#191B6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B6B

14.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B6B	#FFFFFF	#000000	##FFFFFF
##191B6B	1.00	14.89	1.41	14.89
#FFFFFF	14.89	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6D

Deuteranopia (green-blind)

#00236A

Tritanopia (blue-blind)

#003141

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #191b6b;
/* rgb */ color: rgb(25, 27, 107);
/* oklch */ color: oklch(28.6% 0.135 272.9);

Tailwind

colors: {
  custom: {
    50: '#645896',
    500: '#191b6b',
    950: '#000000',
  },
}

SCSS

$custom: #191b6b;
$custom-light: #645896;
$custom-dark: #000000;

JSON

{
  "hex": "#191b6b",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 107
  },
  "hsl": {
    "h": 238.537,
    "s": 62.121,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28573,
    "c": 0.13464,
    "h": 272.9
  },
  "luminance": 0.02052
}

Semantic roles & 50–950 ramp

primary

#191B6B

secondary

#A19E3F

accent

#E143E5

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #191B6B

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

Preview Lab → · Contrast checker → · Palette generator →