#191B7F#191B7F

#191B7F is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.9% C 0.161 H 271.1°. Best body text is #FFFFFF at 13.96:1 contrast (WCAG AA passes).

Color values

HEX	#191B7F
RGB	rgb(25, 27, 127)
HSL	hsl(239, 67%, 30%)
HSV	hsv(239, 80%, 50%)
CMYK	cmyk(80.3%, 78.7%, 0%, 50.2%)
CIE-LAB	lab(18.02, 35.87, -55.63)
CIE-LCH	lch(18.02, 66.20, 302.81°)
OKLab	oklab(30.86% 0.0031 -0.1611)
OKLCH	oklch(30.86% 0.161 271.1)
XYZ	xyz(4.6223, 2.5223, 20.3178)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B7F #7F7D19

analogous

#194E7F #191B7F #4A197F

triadic

#191B7F #7F191B #1B7F19

tetradic

#191B7F #7F194E #7F7D19 #197F4A

square

#191B7F #7F194E #7F7D19 #197F4A

split-complementary

#191B7F #7F4A19 #4E7F19

monochromatic

#05051A #0F104C #191B7F #2326B2 #3A3DD8

Accessibility & contrast

On white

13.96

#191B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#191B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B7F

13.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B7F	#FFFFFF	#000000	##FFFFFF
##191B7F	1.00	13.96	1.50	13.96
#FFFFFF	13.96	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003182

Deuteranopia (green-blind)

#00277D

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #191b7f;
/* rgb */ color: rgb(25, 27, 127);
/* oklch */ color: oklch(30.9% 0.161 271.1);

Tailwind

colors: {
  custom: {
    50: '#6a59a5',
    500: '#191b7f',
    950: '#000000',
  },
}

SCSS

$custom: #191b7f;
$custom-light: #6a59a5;
$custom-dark: #000000;

JSON

{
  "hex": "#191b7f",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 127
  },
  "hsl": {
    "h": 238.824,
    "s": 67.105,
    "l": 29.804
  },
  "oklch": {
    "l": 0.30856,
    "c": 0.16112,
    "h": 271.1
  },
  "luminance": 0.02523
}

Semantic roles & 50–950 ramp

primary

#191B7F

secondary

#B3B141

accent

#E73EEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #191B7F

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

Preview Lab → · Contrast checker → · Palette generator →