#1B1165#1B1165

#1B1165 is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.5% C 0.137 H 276.9°. Best body text is #FFFFFF at 15.97:1 contrast (WCAG AA passes).

Color values

HEX	#1B1165
RGB	rgb(27, 17, 101)
HSL	hsl(247, 71%, 23%)
HSV	hsv(247, 83%, 40%)
CMYK	cmyk(73.3%, 83.2%, 0%, 60.4%)
CIE-LAB	lab(13.07, 32.74, -46.97)
CIE-LCH	lch(13.07, 57.26, 304.88°)
OKLab	oklab(26.5% 0.0165 -0.1357)
OKLCH	oklch(26.5% 0.137 276.9)
XYZ	xyz(3.0006, 1.5732, 12.4549)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1165 #5B6511

analogous

#113165 #1B1165 #451165

triadic

#1B1165 #651B11 #11651B

tetradic

#1B1165 #651131 #5B6511 #116545

square

#1B1165 #651131 #5B6511 #116545

split-complementary

#1B1165 #654511 #316511

monochromatic

#07041A #0D0831 #1B1165 #291A99 #3723CE

Accessibility & contrast

On white

15.97

#1B1165 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#1B1165 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1165

15.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1165	#FFFFFF	#000000	##FFFFFF
##1B1165	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)

#002567

Deuteranopia (green-blind)

#001E64

Tritanopia (blue-blind)

#002A3B

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1b1165;
/* rgb */ color: rgb(27, 17, 101);
/* oklch */ color: oklch(26.5% 0.137 276.9);

Tailwind

colors: {
  custom: {
    50: '#655192',
    500: '#1b1165',
    950: '#000000',
  },
}

SCSS

$custom: #1b1165;
$custom-light: #655192;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1165",
  "rgb": {
    "r": 27,
    "g": 17,
    "b": 101
  },
  "hsl": {
    "h": 247.143,
    "s": 71.186,
    "l": 23.137
  },
  "oklch": {
    "l": 0.26503,
    "c": 0.13675,
    "h": 276.9
  },
  "luminance": 0.01573
}

Semantic roles & 50–950 ramp

primary

#1B1165

secondary

#919D35

accent

#EE3AD8

background

#F6F4F9

surface

#EBE7F1

border

#C6C3CB

text

#06020D

muted

#7A787E

Preview Lab

Preview with #1B1165

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

Preview Lab → · Contrast checker → · Palette generator →