#191B87#191B87

#191B87 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.171 H 270.5°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#191B87
RGB	rgb(25, 27, 135)
HSL	hsl(239, 69%, 31%)
HSV	hsv(239, 81%, 53%)
CMYK	cmyk(81.5%, 80%, 0%, 47.1%)
CIE-LAB	lab(18.97, 38.66, -59.12)
CIE-LCH	lch(18.97, 70.64, 303.18°)
OKLab	oklab(31.8% 0.0016 -0.1712)
OKLCH	oklch(31.8% 0.171 270.5)
XYZ	xyz(5.1645, 2.7392, 23.1735)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B87 #878519

analogous

#195287 #191B87 #4E1987

triadic

#191B87 #87191B #1B8719

tetradic

#191B87 #871952 #878519 #19874E

square

#191B87 #871952 #878519 #19874E

split-complementary

#191B87 #874E19 #528719

monochromatic

#060620 #0F1153 #191B87 #2325BB #3F42DB

Accessibility & contrast

On white

13.57

#191B87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#191B87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B87

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B87	#FFFFFF	#000000	##FFFFFF
##191B87	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348A

Deuteranopia (green-blind)

#002885

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #191b87;
/* rgb */ color: rgb(25, 27, 135);
/* oklch */ color: oklch(31.8% 0.171 270.5);

Tailwind

colors: {
  custom: {
    50: '#6c59ab',
    500: '#191b87',
    950: '#000000',
  },
}

SCSS

$custom: #191b87;
$custom-light: #6c59ab;
$custom-dark: #000000;

JSON

{
  "hex": "#191b87",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 135
  },
  "hsl": {
    "h": 238.909,
    "s": 68.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.31801,
    "c": 0.17122,
    "h": 270.5
  },
  "luminance": 0.0274
}

Semantic roles & 50–950 ramp

primary

#191B87

secondary

#BAB841

accent

#E83CEC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #191B87

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

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