#191B5F#191B5F

#191B5F is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.3% C 0.118 H 274.1°. Best body text is #FFFFFF at 15.40:1 contrast (WCAG AA passes).

Color values

HEX	#191B5F
RGB	rgb(25, 27, 95)
HSL	hsl(238, 58%, 24%)
HSV	hsv(238, 74%, 37%)
CMYK	cmyk(73.7%, 71.6%, 0%, 62.7%)
CIE-LAB	lab(14.49, 24.04, -40.64)
CIE-LCH	lch(14.49, 47.22, 300.60°)
OKLab	oklab(27.28% 0.0084 -0.1174)
OKLCH	oklch(27.28% 0.118 274.1)
XYZ	xyz(2.8577, 1.8165, 11.0243)
Luminance	0.0182 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B5F #5F5D19

analogous

#193E5F #191B5F #3A195F

triadic

#191B5F #5F191B #1B5F19

tetradic

#191B5F #5F193E #5F5D19 #195F3A

square

#191B5F #5F193E #5F5D19 #195F3A

split-complementary

#191B5F #5F3A19 #3E5F19

monochromatic

#060718 #0C0D2F #191B5F #26298F #3237C0

Accessibility & contrast

On white

15.40

#191B5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#191B5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B5F

15.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B5F	#FFFFFF	#000000	##FFFFFF
##191B5F	1.00	15.40	1.36	15.40
#FFFFFF	15.40	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002861

Deuteranopia (green-blind)

#00215E

Tritanopia (blue-blind)

#002D3A

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #191b5f;
/* rgb */ color: rgb(25, 27, 95);
/* oklch */ color: oklch(27.3% 0.118 274.1);

Tailwind

colors: {
  custom: {
    50: '#61578d',
    500: '#191b5f',
    950: '#000000',
  },
}

SCSS

$custom: #191b5f;
$custom-light: #61578d;
$custom-dark: #000000;

JSON

{
  "hex": "#191b5f",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 95
  },
  "hsl": {
    "h": 238.286,
    "s": 58.333,
    "l": 23.529
  },
  "oklch": {
    "l": 0.27279,
    "c": 0.1177,
    "h": 274.1
  },
  "luminance": 0.01817
}

Semantic roles & 50–950 ramp

primary

#191B5F

secondary

#95933F

accent

#DD46E2

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #191B5F

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

Preview Lab → · Contrast checker → · Palette generator →