#15154C#15154C

#15154C is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.8% C 0.099 H 275.9°. Best body text is #FFFFFF at 16.89:1 contrast (WCAG AA passes).

Color values

HEX	#15154C
RGB	rgb(21, 21, 76)
HSL	hsl(240, 57%, 19%)
HSV	hsv(240, 72%, 30%)
CMYK	cmyk(72.4%, 72.4%, 0%, 70.2%)
CIE-LAB	lab(10.69, 20.23, -34.00)
CIE-LCH	lch(10.69, 39.57, 300.76°)
OKLab	oklab(23.84% 0.0101 -0.0981)
OKLCH	oklch(23.84% 0.099 275.9)
XYZ	xyz(1.8815, 1.2174, 6.9719)
Luminance	0.0122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15154C #4C4C15

analogous

#15314C #15154C #31154C

triadic

#15154C #4C1515 #154C15

tetradic

#15154C #4C1531 #4C4C15 #154C31

square

#15154C #4C1531 #4C4C15 #154C31

split-complementary

#15154C #4C3115 #314C15

monochromatic

#070718 #08081C #15154C #22227C #2F2FAC

Accessibility & contrast

On white

16.89

#15154C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#15154C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15154C

16.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15154C	#FFFFFF	#000000	##FFFFFF
##15154C	1.00	16.89	1.24	16.89
#FFFFFF	16.89	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F4E

Deuteranopia (green-blind)

#001A4B

Tritanopia (blue-blind)

#00232E

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #15154c;
/* rgb */ color: rgb(21, 21, 76);
/* oklch */ color: oklch(23.8% 0.099 275.9);

Tailwind

colors: {
  custom: {
    50: '#5b527f',
    500: '#15154c',
    950: '#000000',
  },
}

SCSS

$custom: #15154c;
$custom-light: #5b527f;
$custom-dark: #000000;

JSON

{
  "hex": "#15154c",
  "rgb": {
    "r": 21,
    "g": 21,
    "b": 76
  },
  "hsl": {
    "h": 240,
    "s": 56.701,
    "l": 19.02
  },
  "oklch": {
    "l": 0.23841,
    "c": 0.09862,
    "h": 275.9
  },
  "luminance": 0.01218
}

Semantic roles & 50–950 ramp

primary

#15154C

secondary

#848439

accent

#E048E0

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #15154C

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

Preview Lab → · Contrast checker → · Palette generator →