#15178F#15178F

#15178F is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.1% C 0.185 H 268.9°. Best body text is #FFFFFF at 13.54:1 contrast (WCAG AA passes).

Color values

HEX	#15178F
RGB	rgb(21, 23, 143)
HSL	hsl(239, 74%, 32%)
HSV	hsv(239, 85%, 56%)
CMYK	cmyk(85.3%, 83.9%, 0%, 43.9%)
CIE-LAB	lab(19.03, 43.23, -64.03)
CIE-LCH	lch(19.03, 77.25, 304.03°)
OKLab	oklab(32.08% -0.0034 -0.1854)
OKLCH	oklch(32.08% 0.185 268.9)
XYZ	xyz(5.5719, 2.7547, 26.2193)
Luminance	0.0276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15178F #8F8D15

analogous

#15548F #15178F #50158F

triadic

#15178F #8F1517 #178F15

tetradic

#15178F #8F1554 #8F8D15 #158F50

square

#15178F #8F1554 #8F8D15 #158F50

split-complementary

#15178F #8F5015 #548F15

monochromatic

#050624 #0D0E5A #15178F #1D20C4 #3C3FE2

Accessibility & contrast

On white

13.54

#15178F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#15178F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15178F

13.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15178F	#FFFFFF	#000000	##FFFFFF
##15178F	1.00	13.54	1.55	13.54
#FFFFFF	13.54	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003492

Deuteranopia (green-blind)

#00288D

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #15178f;
/* rgb */ color: rgb(21, 23, 143);
/* oklch */ color: oklch(32.1% 0.185 268.9);

Tailwind

colors: {
  custom: {
    50: '#6e58b1',
    500: '#15178f',
    950: '#000000',
  },
}

SCSS

$custom: #15178f;
$custom-light: #6e58b1;
$custom-dark: #000000;

JSON

{
  "hex": "#15178f",
  "rgb": {
    "r": 21,
    "g": 23,
    "b": 143
  },
  "hsl": {
    "h": 239.016,
    "s": 74.39,
    "l": 32.157
  },
  "oklch": {
    "l": 0.32079,
    "c": 0.18543,
    "h": 268.9
  },
  "luminance": 0.02755
}

Semantic roles & 50–950 ramp

primary

#15178F

secondary

#C2C03E

accent

#EE37F1

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #15178F

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

Preview Lab → · Contrast checker → · Palette generator →