#191E51#191E51

#191E51 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.5% C 0.092 H 274.0°. Best body text is #FFFFFF at 15.60:1 contrast (WCAG AA passes).

Color values

HEX	#191E51
RGB	rgb(25, 30, 81)
HSL	hsl(235, 53%, 21%)
HSV	hsv(235, 69%, 32%)
CMYK	cmyk(69.1%, 63%, 0%, 68.2%)
CIE-LAB	lab(14.00, 16.37, -32.02)
CIE-LCH	lch(14.00, 35.96, 297.07°)
OKLab	oklab(26.5% 0.0065 -0.0921)
OKLCH	oklch(26.5% 0.092 274)
XYZ	xyz(2.3499, 1.7291, 7.9929)
Luminance	0.0173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.17

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191E51 #514C19

analogous

#193A51 #191E51 #301951

triadic

#191E51 #51191E #1E5119

tetradic

#191E51 #51193A #514C19 #195130

square

#191E51 #51193A #514C19 #195130

split-complementary

#191E51 #513019 #3A5119

monochromatic

#070917 #0B0D22 #191E51 #272F80 #3641AF

Accessibility & contrast

On white

15.60

#191E51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#191E51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191E51

15.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191E51	#FFFFFF	#000000	##FFFFFF
##191E51	1.00	15.60	1.35	15.60
#FFFFFF	15.60	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002653

Deuteranopia (green-blind)

#002150

Tritanopia (blue-blind)

#002A34

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #191e51;
/* rgb */ color: rgb(25, 30, 81);
/* oklch */ color: oklch(26.5% 0.092 274.0);

Tailwind

colors: {
  custom: {
    50: '#5d5982',
    500: '#191e51',
    950: '#000000',
  },
}

SCSS

$custom: #191e51;
$custom-light: #5d5982;
$custom-dark: #000000;

JSON

{
  "hex": "#191e51",
  "rgb": {
    "r": 25,
    "g": 30,
    "b": 81
  },
  "hsl": {
    "h": 234.643,
    "s": 52.83,
    "l": 20.784
  },
  "oklch": {
    "l": 0.26504,
    "c": 0.09232,
    "h": 274
  },
  "luminance": 0.01729
}

Semantic roles & 50–950 ramp

primary

#191E51

secondary

#87813E

accent

#CF4CDC

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030A

muted

#79787C

Preview Lab

Preview with #191E51

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

Preview Lab → · Contrast checker → · Palette generator →