#1B0F68#1B0F68

#1B0F68 is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.6% C 0.142 H 276.7°. Best body text is #FFFFFF at 15.97:1 contrast (WCAG AA passes).

Color values

HEX	#1B0F68
RGB	rgb(27, 15, 104)
HSL	hsl(248, 75%, 23%)
HSV	hsv(248, 86%, 41%)
CMYK	cmyk(74%, 85.6%, 0%, 59.2%)
CIE-LAB	lab(13.07, 34.81, -48.95)
CIE-LCH	lch(13.07, 60.06, 305.42°)
OKLab	oklab(26.61% 0.0165 -0.1415)
OKLCH	oklch(26.61% 0.142 276.7)
XYZ	xyz(3.1207, 1.5738, 13.2333)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0F68 #5C680F

analogous

#0F2F68 #1B0F68 #470F68

triadic

#1B0F68 #681B0F #0F681B

tetradic

#1B0F68 #680F2F #5C680F #0F6847

square

#1B0F68 #680F2F #5C680F #0F6847

split-complementary

#1B0F68 #68470F #2F680F

monochromatic

#07041B #0D0733 #1B0F68 #29179D #371ED3

Accessibility & contrast

On white

15.97

#1B0F68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#1B0F68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0F68

15.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0F68	#FFFFFF	#000000	##FFFFFF
##1B0F68	1.00	15.97	1.31	15.97
#FFFFFF	15.97	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00256A

Deuteranopia (green-blind)

#001E66

Tritanopia (blue-blind)

#002B3C

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1b0f68;
/* rgb */ color: rgb(27, 15, 104);
/* oklch */ color: oklch(26.6% 0.142 276.7);

Tailwind

colors: {
  custom: {
    50: '#665094',
    500: '#1b0f68',
    950: '#000000',
  },
}

SCSS

$custom: #1b0f68;
$custom-light: #665094;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0f68",
  "rgb": {
    "r": 27,
    "g": 15,
    "b": 104
  },
  "hsl": {
    "h": 248.09,
    "s": 74.79,
    "l": 23.333
  },
  "oklch": {
    "l": 0.26614,
    "c": 0.14242,
    "h": 276.7
  },
  "luminance": 0.01574
}

Semantic roles & 50–950 ramp

primary

#1B0F68

secondary

#92A132

accent

#F136D8

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020D

muted

#7A787E

Preview Lab

Preview with #1B0F68

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

Preview Lab → · Contrast checker → · Palette generator →