#191B5D#191B5D

#191B5D is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.1% C 0.115 H 274.3°. Best body text is #FFFFFF at 15.48:1 contrast (WCAG AA passes).

Color values

HEX	#191B5D
RGB	rgb(25, 27, 93)
HSL	hsl(238, 58%, 23%)
HSV	hsv(238, 73%, 36%)
CMYK	cmyk(73.1%, 71%, 0%, 63.5%)
CIE-LAB	lab(14.29, 23.27, -39.64)
CIE-LCH	lch(14.29, 45.96, 300.41°)
OKLab	oklab(27.07% 0.0086 -0.1145)
OKLCH	oklch(27.07% 0.115 274.3)
XYZ	xyz(2.7680, 1.7806, 10.5516)
Luminance	0.0178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B5D #5D5B19

analogous

#193D5D #191B5D #39195D

triadic

#191B5D #5D191B #1B5D19

tetradic

#191B5D #5D193D #5D5B19 #195D39

square

#191B5D #5D193D #5D5B19 #195D39

split-complementary

#191B5D #5D3919 #3D5D19

monochromatic

#060718 #0C0D2D #191B5D #26298D #3337BD

Accessibility & contrast

On white

15.48

#191B5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#191B5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B5D

15.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B5D	#FFFFFF	#000000	##FFFFFF
##191B5D	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)

#00275F

Deuteranopia (green-blind)

#00215C

Tritanopia (blue-blind)

#002C39

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #191b5d;
/* rgb */ color: rgb(25, 27, 93);
/* oklch */ color: oklch(27.1% 0.115 274.3);

Tailwind

colors: {
  custom: {
    50: '#61578c',
    500: '#191b5d',
    950: '#000000',
  },
}

SCSS

$custom: #191b5d;
$custom-light: #61578c;
$custom-dark: #000000;

JSON

{
  "hex": "#191b5d",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 93
  },
  "hsl": {
    "h": 238.235,
    "s": 57.627,
    "l": 23.137
  },
  "oklch": {
    "l": 0.2707,
    "c": 0.11479,
    "h": 274.3
  },
  "luminance": 0.01781
}

Semantic roles & 50–950 ramp

primary

#191B5D

secondary

#93913F

accent

#DC47E1

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #191B5D

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

Preview Lab → · Contrast checker → · Palette generator →