#191B50#191B50

#191B50 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.8% C 0.095 H 275.8°. Best body text is #FFFFFF at 15.98:1 contrast (WCAG AA passes).

Color values

HEX	#191B50
RGB	rgb(25, 27, 80)
HSL	hsl(238, 52%, 21%)
HSV	hsv(238, 69%, 31%)
CMYK	cmyk(68.8%, 66.3%, 0%, 68.6%)
CIE-LAB	lab(13.04, 18.17, -32.89)
CIE-LCH	lch(13.04, 37.58, 298.92°)
OKLab	oklab(25.77% 0.0096 -0.0947)
OKLCH	oklch(25.77% 0.095 275.8)
XYZ	xyz(2.2403, 1.5695, 7.7728)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.55

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B50 #504E19

analogous

#193650 #191B50 #321950

triadic

#191B50 #50191B #1B5019

tetradic

#191B50 #501936 #504E19 #195032

square

#191B50 #501936 #504E19 #195032

split-complementary

#191B50 #503219 #365019

monochromatic

#070817 #0A0B21 #191B50 #282B7F #363AAD

Accessibility & contrast

On white

15.98

#191B50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#191B50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B50

15.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B50	#FFFFFF	#000000	##FFFFFF
##191B50	1.00	15.98	1.31	15.98
#FFFFFF	15.98	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002452

Deuteranopia (green-blind)

#001F4F

Tritanopia (blue-blind)

#002832

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #191b50;
/* rgb */ color: rgb(25, 27, 80);
/* oklch */ color: oklch(25.8% 0.095 275.8);

Tailwind

colors: {
  custom: {
    50: '#5d5782',
    500: '#191b50',
    950: '#000000',
  },
}

SCSS

$custom: #191b50;
$custom-light: #5d5782;
$custom-dark: #000000;

JSON

{
  "hex": "#191b50",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 80
  },
  "hsl": {
    "h": 237.818,
    "s": 52.381,
    "l": 20.588
  },
  "oklch": {
    "l": 0.2577,
    "c": 0.09515,
    "h": 275.8
  },
  "luminance": 0.0157
}

Semantic roles & 50–950 ramp

primary

#191B50

secondary

#86843E

accent

#D74CDC

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030A

muted

#79787C

Preview Lab

Preview with #191B50

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

Preview Lab → · Contrast checker → · Palette generator →