#191B59#191B59

#191B59 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.7% C 0.109 H 274.8°. Best body text is #FFFFFF at 15.64:1 contrast (WCAG AA passes).

Color values

HEX	#191B59
RGB	rgb(25, 27, 89)
HSL	hsl(238, 56%, 22%)
HSV	hsv(238, 72%, 35%)
CMYK	cmyk(71.9%, 69.7%, 0%, 65.1%)
CIE-LAB	lab(13.89, 21.71, -37.61)
CIE-LCH	lch(13.89, 43.42, 300.00°)
OKLab	oklab(26.66% 0.009 -0.1085)
OKLCH	oklch(26.66% 0.109 274.8)
XYZ	xyz(2.5954, 1.7116, 9.6428)
Luminance	0.0171 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B59 #595719

analogous

#193B59 #191B59 #371959

triadic

#191B59 #59191B #1B5919

tetradic

#191B59 #59193B #595719 #195937

square

#191B59 #59193B #595719 #195937

split-complementary

#191B59 #593719 #3B5919

monochromatic

#070718 #0C0D29 #191B59 #262989 #3438B9

Accessibility & contrast

On white

15.64

#191B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#191B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B59

15.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B59	#FFFFFF	#000000	##FFFFFF
##191B59	1.00	15.64	1.34	15.64
#FFFFFF	15.64	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00265B

Deuteranopia (green-blind)

#002158

Tritanopia (blue-blind)

#002B37

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #191b59;
/* rgb */ color: rgb(25, 27, 89);
/* oklch */ color: oklch(26.7% 0.109 274.8);

Tailwind

colors: {
  custom: {
    50: '#5f5789',
    500: '#191b59',
    950: '#000000',
  },
}

SCSS

$custom: #191b59;
$custom-light: #5f5789;
$custom-dark: #000000;

JSON

{
  "hex": "#191b59",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 89
  },
  "hsl": {
    "h": 238.125,
    "s": 56.14,
    "l": 22.353
  },
  "oklch": {
    "l": 0.26659,
    "c": 0.10888,
    "h": 274.8
  },
  "luminance": 0.01712
}

Semantic roles & 50–950 ramp

primary

#191B59

secondary

#8F8D3E

accent

#DB48DF

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #191B59

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

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