#15156B#15156B

#15156B is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.4% C 0.142 H 271.9°. Best body text is #FFFFFF at 15.54:1 contrast (WCAG AA passes).

Color values

HEX	#15156B
RGB	rgb(21, 21, 107)
HSL	hsl(240, 67%, 25%)
HSV	hsv(240, 80%, 42%)
CMYK	cmyk(80.4%, 80.4%, 0%, 58%)
CIE-LAB	lab(14.16, 31.98, -49.13)
CIE-LCH	lch(14.16, 58.62, 303.06°)
OKLab	oklab(27.37% 0.0047 -0.1422)
OKLCH	oklch(27.37% 0.142 271.9)
XYZ	xyz(3.2304, 1.7569, 14.0759)
Luminance	0.0176 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15156B #6B6B15

analogous

#15406B #15156B #40156B

triadic

#15156B #6B1515 #156B15

tetradic

#15156B #6B1540 #6B6B15 #156B40

square

#15156B #6B1540 #6B6B15 #156B40

split-complementary

#15156B #6B4015 #406B15

monochromatic

#05051A #0B0B38 #15156B #1F1F9E #2929D1

Accessibility & contrast

On white

15.54

#15156B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#15156B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15156B

15.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15156B	#FFFFFF	#000000	##FFFFFF
##15156B	1.00	15.54	1.35	15.54
#FFFFFF	15.54	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00286D

Deuteranopia (green-blind)

#002069

Tritanopia (blue-blind)

#002F3F

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #15156b;
/* rgb */ color: rgb(21, 21, 107);
/* oklch */ color: oklch(27.4% 0.142 271.9);

Tailwind

colors: {
  custom: {
    50: '#645496',
    500: '#15156b',
    950: '#000000',
  },
}

SCSS

$custom: #15156b;
$custom-light: #645496;
$custom-dark: #000000;

JSON

{
  "hex": "#15156b",
  "rgb": {
    "r": 21,
    "g": 21,
    "b": 107
  },
  "hsl": {
    "h": 240,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.27366,
    "c": 0.14231,
    "h": 271.9
  },
  "luminance": 0.01757
}

Semantic roles & 50–950 ramp

primary

#15156B

secondary

#A2A23A

accent

#EA3EEA

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #15156B

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

Preview Lab → · Contrast checker → · Palette generator →