#191F7B#191F7B

#191F7B is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.0% C 0.152 H 270.8°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#191F7B
RGB	rgb(25, 31, 123)
HSL	hsl(236, 66%, 29%)
HSV	hsv(236, 80%, 48%)
CMYK	cmyk(79.7%, 74.8%, 0%, 51.8%)
CIE-LAB	lab(18.44, 31.98, -52.40)
CIE-LCH	lch(18.44, 61.39, 301.39°)
OKLab	oklab(31.02% 0.0021 -0.1517)
OKLCH	oklch(31.02% 0.152 270.8)
XYZ	xyz(4.4648, 2.6162, 19.0047)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191F7B #7B7519

analogous

#19507B #191F7B #44197B

triadic

#191F7B #7B191F #1F7B19

tetradic

#191F7B #7B1950 #7B7519 #197B44

square

#191F7B #7B1950 #7B7519 #197B44

split-complementary

#191F7B #7B4419 #507B19

monochromatic

#050619 #0F1248 #191F7B #232CAE #3842D7

Accessibility & contrast

On white

13.78

#191F7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#191F7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191F7B

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191F7B	#FFFFFF	#000000	##FFFFFF
##191F7B	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327E

Deuteranopia (green-blind)

#002879

Tritanopia (blue-blind)

#00394B

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #191f7b;
/* rgb */ color: rgb(25, 31, 123);
/* oklch */ color: oklch(31.0% 0.152 270.8);

Tailwind

colors: {
  custom: {
    50: '#685ba2',
    500: '#191f7b',
    950: '#000000',
  },
}

SCSS

$custom: #191f7b;
$custom-light: #685ba2;
$custom-dark: #000000;

JSON

{
  "hex": "#191f7b",
  "rgb": {
    "r": 25,
    "g": 31,
    "b": 123
  },
  "hsl": {
    "h": 236.327,
    "s": 66.216,
    "l": 29.02
  },
  "oklch": {
    "l": 0.31018,
    "c": 0.15172,
    "h": 270.8
  },
  "luminance": 0.02617
}

Semantic roles & 50–950 ramp

primary

#191F7B

secondary

#AFA940

accent

#DF3FE9

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #191F7B

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

Preview Lab → · Contrast checker → · Palette generator →