#15186B#15186B

#15186B is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.8% C 0.139 H 271.4°. Best body text is #FFFFFF at 15.27:1 contrast (WCAG AA passes).

Color values

HEX	#15186B
RGB	rgb(21, 24, 107)
HSL	hsl(238, 67%, 25%)
HSV	hsv(238, 80%, 42%)
CMYK	cmyk(80.4%, 77.6%, 0%, 58%)
CIE-LAB	lab(14.81, 30.12, -48.05)
CIE-LCH	lch(14.81, 56.71, 302.08°)
OKLab	oklab(27.83% 0.0034 -0.1391)
OKLCH	oklch(27.83% 0.139 271.4)
XYZ	xyz(3.2888, 1.8739, 14.0954)
Luminance	0.0187 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15186B #6B6815

analogous

#15436B #15186B #3D156B

triadic

#15186B #6B1518 #186B15

tetradic

#15186B #6B1543 #6B6815 #156B3D

square

#15186B #6B1543 #6B6815 #156B3D

split-complementary

#15186B #6B3D15 #436B15

monochromatic

#05061A #0B0D38 #15186B #1F239E #292FD1

Accessibility & contrast

On white

15.27

#15186B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#15186B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15186B

15.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15186B	#FFFFFF	#000000	##FFFFFF
##15186B	1.00	15.27	1.37	15.27
#FFFFFF	15.27	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296D

Deuteranopia (green-blind)

#00216A

Tritanopia (blue-blind)

#003040

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #15186b;
/* rgb */ color: rgb(21, 24, 107);
/* oklch */ color: oklch(27.8% 0.139 271.4);

Tailwind

colors: {
  custom: {
    50: '#635696',
    500: '#15186b',
    950: '#000000',
  },
}

SCSS

$custom: #15186b;
$custom-light: #635696;
$custom-dark: #000000;

JSON

{
  "hex": "#15186b",
  "rgb": {
    "r": 21,
    "g": 24,
    "b": 107
  },
  "hsl": {
    "h": 237.907,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.2783,
    "c": 0.13915,
    "h": 271.4
  },
  "luminance": 0.01874
}

Semantic roles & 50–950 ramp

primary

#15186B

secondary

#A29E3A

accent

#E43EEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #15186B

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

Preview Lab → · Contrast checker → · Palette generator →