#191C51#191C51

#191C51 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.1% C 0.095 H 275.2°. Best body text is #FFFFFF at 15.83:1 contrast (WCAG AA passes).

Color values

HEX	#191C51
RGB	rgb(25, 28, 81)
HSL	hsl(237, 53%, 21%)
HSV	hsv(237, 69%, 32%)
CMYK	cmyk(69.1%, 65.4%, 0%, 68.2%)
CIE-LAB	lab(13.42, 17.84, -32.96)
CIE-LCH	lch(13.42, 37.48, 298.42°)
OKLab	oklab(26.08% 0.0086 -0.0949)
OKLCH	oklch(26.08% 0.095 275.2)
XYZ	xyz(2.3009, 1.6311, 7.9766)
Luminance	0.0163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191C51 #514E19

analogous

#193851 #191C51 #321951

triadic

#191C51 #51191C #1C5119

tetradic

#191C51 #511938 #514E19 #195132

square

#191C51 #511938 #514E19 #195132

split-complementary

#191C51 #513219 #385119

monochromatic

#070817 #0B0C22 #191C51 #272C80 #363CAF

Accessibility & contrast

On white

15.83

#191C51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#191C51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191C51

15.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191C51	#FFFFFF	#000000	##FFFFFF
##191C51	1.00	15.83	1.33	15.83
#FFFFFF	15.83	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002553

Deuteranopia (green-blind)

#002050

Tritanopia (blue-blind)

#002933

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #191c51;
/* rgb */ color: rgb(25, 28, 81);
/* oklch */ color: oklch(26.1% 0.095 275.2);

Tailwind

colors: {
  custom: {
    50: '#5d5882',
    500: '#191c51',
    950: '#000000',
  },
}

SCSS

$custom: #191c51;
$custom-light: #5d5882;
$custom-dark: #000000;

JSON

{
  "hex": "#191c51",
  "rgb": {
    "r": 25,
    "g": 28,
    "b": 81
  },
  "hsl": {
    "h": 236.786,
    "s": 52.83,
    "l": 20.784
  },
  "oklch": {
    "l": 0.26075,
    "c": 0.09526,
    "h": 275.2
  },
  "luminance": 0.01631
}

Semantic roles & 50–950 ramp

primary

#191C51

secondary

#87843E

accent

#D44CDC

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030A

muted

#79787C

Preview Lab

Preview with #191C51

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

Preview Lab → · Contrast checker → · Palette generator →