#15105A#15105A

#15105A is a very dark, vivid blue. Relative luminance 0.013; OKLCH L 24.6% C 0.125 H 275.1°. Best body text is #FFFFFF at 16.75:1 contrast (WCAG AA passes).

Color values

HEX	#15105A
RGB	rgb(21, 16, 90)
HSL	hsl(244, 70%, 21%)
HSV	hsv(244, 82%, 35%)
CMYK	cmyk(76.7%, 82.2%, 0%, 64.7%)
CIE-LAB	lab(11.05, 28.85, -42.97)
CIE-LCH	lch(11.05, 51.75, 303.88°)
OKLab	oklab(24.57% 0.011 -0.1243)
OKLCH	oklch(24.57% 0.125 275.1)
XYZ	xyz(2.3394, 1.2680, 9.7923)
Luminance	0.0127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15105A #555A10

analogous

#10305A #15105A #3A105A

triadic

#15105A #5A1510 #105A15

tetradic

#15105A #5A1030 #555A10 #105A3A

square

#15105A #5A1030 #555A10 #105A3A

split-complementary

#15105A #5A3A10 #305A10

monochromatic

#06051A #090726 #15105A #21198E #2D22C2

Accessibility & contrast

On white

16.75

#15105A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#15105A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15105A

16.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15105A	#FFFFFF	#000000	##FFFFFF
##15105A	1.00	16.75	1.25	16.75
#FFFFFF	16.75	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00215C

Deuteranopia (green-blind)

#001A59

Tritanopia (blue-blind)

#002634

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #15105a;
/* rgb */ color: rgb(21, 16, 90);
/* oklch */ color: oklch(24.6% 0.125 275.1);

Tailwind

colors: {
  custom: {
    50: '#5f508a',
    500: '#15105a',
    950: '#000000',
  },
}

SCSS

$custom: #15105a;
$custom-light: #5f508a;
$custom-dark: #000000;

JSON

{
  "hex": "#15105a",
  "rgb": {
    "r": 21,
    "g": 16,
    "b": 90
  },
  "hsl": {
    "h": 244.054,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.24572,
    "c": 0.12475,
    "h": 275.1
  },
  "luminance": 0.01268
}

Semantic roles & 50–950 ramp

primary

#15105A

secondary

#8D9333

accent

#ED3BE1

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05020C

muted

#7A787D

Preview Lab

Preview with #15105A

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

Preview Lab → · Contrast checker → · Palette generator →