#191B5C#191B5C

#191B5C is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.0% C 0.113 H 274.4°. Best body text is #FFFFFF at 15.53:1 contrast (WCAG AA passes).

Color values

HEX	#191B5C
RGB	rgb(25, 27, 92)
HSL	hsl(238, 57%, 23%)
HSV	hsv(238, 73%, 36%)
CMYK	cmyk(72.8%, 70.7%, 0%, 63.9%)
CIE-LAB	lab(14.19, 22.88, -39.13)
CIE-LCH	lch(14.19, 45.33, 300.31°)
OKLab	oklab(26.97% 0.0087 -0.113)
OKLCH	oklch(26.97% 0.113 274.4)
XYZ	xyz(2.7240, 1.7630, 10.3199)
Luminance	0.0176 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B5C #5C5A19

analogous

#193C5C #191B5C #38195C

triadic

#191B5C #5C191B #1B5C19

tetradic

#191B5C #5C193C #5C5A19 #195C38

square

#191B5C #5C193C #5C5A19 #195C38

split-complementary

#191B5C #5C3819 #3C5C19

monochromatic

#070718 #0C0D2C #191B5C #26298C #3337BC

Accessibility & contrast

On white

15.53

#191B5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#191B5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B5C

15.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B5C	#FFFFFF	#000000	##FFFFFF
##191B5C	1.00	15.53	1.35	15.53
#FFFFFF	15.53	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00275E

Deuteranopia (green-blind)

#00215B

Tritanopia (blue-blind)

#002C38

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #191b5c;
/* rgb */ color: rgb(25, 27, 92);
/* oklch */ color: oklch(27.0% 0.113 274.4);

Tailwind

colors: {
  custom: {
    50: '#60578b',
    500: '#191b5c',
    950: '#000000',
  },
}

SCSS

$custom: #191b5c;
$custom-light: #60578b;
$custom-dark: #000000;

JSON

{
  "hex": "#191b5c",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 92
  },
  "hsl": {
    "h": 238.209,
    "s": 57.265,
    "l": 22.941
  },
  "oklch": {
    "l": 0.26966,
    "c": 0.11332,
    "h": 274.4
  },
  "luminance": 0.01763
}

Semantic roles & 50–950 ramp

primary

#191B5C

secondary

#92903F

accent

#DC47E1

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #191B5C

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

Preview Lab → · Contrast checker → · Palette generator →