#15154D#15154D

#15154D is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.9% C 0.100 H 275.7°. Best body text is #FFFFFF at 16.85:1 contrast (WCAG AA passes).

Color values

HEX	#15154D
RGB	rgb(21, 21, 77)
HSL	hsl(240, 57%, 19%)
HSV	hsv(240, 73%, 30%)
CMYK	cmyk(72.7%, 72.7%, 0%, 69.8%)
CIE-LAB	lab(10.79, 20.63, -34.53)
CIE-LCH	lch(10.79, 40.22, 300.86°)
OKLab	oklab(23.95% 0.01 -0.0996)
OKLCH	oklch(23.95% 0.1 275.7)
XYZ	xyz(1.9165, 1.2314, 7.1564)
Luminance	0.0123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15154D #4D4D15

analogous

#15314D #15154D #31154D

triadic

#15154D #4D1515 #154D15

tetradic

#15154D #4D1531 #4D4D15 #154D31

square

#15154D #4D1531 #4D4D15 #154D31

split-complementary

#15154D #4D3115 #314D15

monochromatic

#070718 #08081D #15154D #22227D #2F2FAD

Accessibility & contrast

On white

16.85

#15154D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#15154D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15154D

16.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15154D	#FFFFFF	#000000	##FFFFFF
##15154D	1.00	16.85	1.25	16.85
#FFFFFF	16.85	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00204F

Deuteranopia (green-blind)

#001B4C

Tritanopia (blue-blind)

#00242E

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #15154d;
/* rgb */ color: rgb(21, 21, 77);
/* oklch */ color: oklch(23.9% 0.100 275.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#15154d",
  "rgb": {
    "r": 21,
    "g": 21,
    "b": 77
  },
  "hsl": {
    "h": 240,
    "s": 57.143,
    "l": 19.216
  },
  "oklch": {
    "l": 0.23946,
    "c": 0.10013,
    "h": 275.7
  },
  "luminance": 0.01232
}

Semantic roles & 50–950 ramp

primary

#15154D

secondary

#858539

accent

#E047E0

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #15154D

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

Preview Lab → · Contrast checker → · Palette generator →