#1B1968#1B1968

#1B1968 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.0% C 0.132 H 274.8°. Best body text is #FFFFFF at 15.16:1 contrast (WCAG AA passes).

Color values

HEX	#1B1968
RGB	rgb(27, 25, 104)
HSL	hsl(242, 61%, 25%)
HSV	hsv(242, 76%, 41%)
CMYK	cmyk(74%, 76%, 0%, 59.2%)
CIE-LAB	lab(15.10, 29.02, -45.59)
CIE-LCH	lch(15.10, 54.04, 302.47°)
OKLab	oklab(28.04% 0.0111 -0.1318)
OKLCH	oklch(28.04% 0.132 274.8)
XYZ	xyz(3.2975, 1.9274, 13.2923)
Luminance	0.0193 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1968 #666819

analogous

#193E68 #1B1968 #421968

triadic

#1B1968 #681B19 #19681B

tetradic

#1B1968 #68193E #666819 #196842

square

#1B1968 #68193E #666819 #196842

split-complementary

#1B1968 #684219 #3E6819

monochromatic

#060619 #0E0D37 #1B1968 #282599 #3531CB

Accessibility & contrast

On white

15.16

#1B1968 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#1B1968 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1968

15.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1968	#FFFFFF	#000000	##FFFFFF
##1B1968	1.00	15.16	1.39	15.16
#FFFFFF	15.16	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296A

Deuteranopia (green-blind)

#002267

Tritanopia (blue-blind)

#002F3E

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1b1968;
/* rgb */ color: rgb(27, 25, 104);
/* oklch */ color: oklch(28.0% 0.132 274.8);

Tailwind

colors: {
  custom: {
    50: '#645694',
    500: '#1b1968',
    950: '#000000',
  },
}

SCSS

$custom: #1b1968;
$custom-light: #645694;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1968",
  "rgb": {
    "r": 27,
    "g": 25,
    "b": 104
  },
  "hsl": {
    "h": 241.519,
    "s": 61.24,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28043,
    "c": 0.13227,
    "h": 274.8
  },
  "luminance": 0.01928
}

Semantic roles & 50–950 ramp

primary

#1B1968

secondary

#9B9E3F

accent

#E443E0

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #1B1968

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

Preview Lab → · Contrast checker → · Palette generator →