#191B83#191B83

#191B83 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.3% C 0.166 H 270.8°. Best body text is #FFFFFF at 13.76:1 contrast (WCAG AA passes).

Color values

HEX	#191B83
RGB	rgb(25, 27, 131)
HSL	hsl(239, 68%, 31%)
HSV	hsv(239, 81%, 51%)
CMYK	cmyk(80.9%, 79.4%, 0%, 48.6%)
CIE-LAB	lab(18.49, 37.27, -57.39)
CIE-LCH	lch(18.49, 68.43, 303.00°)
OKLab	oklab(31.33% 0.0023 -0.1662)
OKLCH	oklch(31.33% 0.166 270.8)
XYZ	xyz(4.8882, 2.6287, 21.7181)
Luminance	0.0263 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B83 #838119

analogous

#195083 #191B83 #4C1983

triadic

#191B83 #83191B #1B8319

tetradic

#191B83 #831950 #838119 #19834C

square

#191B83 #831950 #838119 #19834C

split-complementary

#191B83 #834C19 #508319

monochromatic

#05061C #0F1050 #191B83 #2326B6 #3D3FDA

Accessibility & contrast

On white

13.76

#191B83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#191B83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B83

13.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B83	#FFFFFF	#000000	##FFFFFF
##191B83	1.00	13.76	1.53	13.76
#FFFFFF	13.76	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003286

Deuteranopia (green-blind)

#002881

Tritanopia (blue-blind)

#003A4E

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #191b83;
/* rgb */ color: rgb(25, 27, 131);
/* oklch */ color: oklch(31.3% 0.166 270.8);

Tailwind

colors: {
  custom: {
    50: '#6b59a8',
    500: '#191b83',
    950: '#000000',
  },
}

SCSS

$custom: #191b83;
$custom-light: #6b59a8;
$custom-dark: #000000;

JSON

{
  "hex": "#191b83",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 131
  },
  "hsl": {
    "h": 238.868,
    "s": 67.949,
    "l": 30.588
  },
  "oklch": {
    "l": 0.31327,
    "c": 0.1662,
    "h": 270.8
  },
  "luminance": 0.02629
}

Semantic roles & 50–950 ramp

primary

#191B83

secondary

#B7B541

accent

#E83DEB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #191B83

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

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