#191F51#191F51

#191F51 is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.7% C 0.091 H 273.4°. Best body text is #FFFFFF at 15.48:1 contrast (WCAG AA passes).

Color values

HEX	#191F51
RGB	rgb(25, 31, 81)
HSL	hsl(234, 53%, 21%)
HSV	hsv(234, 69%, 32%)
CMYK	cmyk(69.1%, 61.7%, 0%, 68.2%)
CIE-LAB	lab(14.29, 15.63, -31.55)
CIE-LCH	lch(14.29, 35.21, 296.35°)
OKLab	oklab(26.72% 0.0054 -0.0907)
OKLCH	oklch(26.72% 0.091 273.4)
XYZ	xyz(2.3756, 1.7805, 8.0015)
Luminance	0.0178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191F51 #514B19

analogous

#193B51 #191F51 #2F1951

triadic

#191F51 #51191F #1F5119

tetradic

#191F51 #51193B #514B19 #19512F

square

#191F51 #51193B #514B19 #19512F

split-complementary

#191F51 #512F19 #3B5119

monochromatic

#070917 #0B0D22 #191F51 #273180 #3643AF

Accessibility & contrast

On white

15.48

#191F51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#191F51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191F51

15.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191F51	#FFFFFF	#000000	##FFFFFF
##191F51	1.00	15.48	1.36	15.48
#FFFFFF	15.48	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002753

Deuteranopia (green-blind)

#002250

Tritanopia (blue-blind)

#002B34

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #191f51;
/* rgb */ color: rgb(25, 31, 81);
/* oklch */ color: oklch(26.7% 0.091 273.4);

Tailwind

colors: {
  custom: {
    50: '#5d5a82',
    500: '#191f51',
    950: '#000000',
  },
}

SCSS

$custom: #191f51;
$custom-light: #5d5a82;
$custom-dark: #000000;

JSON

{
  "hex": "#191f51",
  "rgb": {
    "r": 25,
    "g": 31,
    "b": 81
  },
  "hsl": {
    "h": 233.571,
    "s": 52.83,
    "l": 20.784
  },
  "oklch": {
    "l": 0.26723,
    "c": 0.09083,
    "h": 273.4
  },
  "luminance": 0.01781
}

Semantic roles & 50–950 ramp

primary

#191F51

secondary

#87803E

accent

#CD4CDC

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030A

muted

#79787C

Preview Lab

Preview with #191F51

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

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