#15104E#15104E

#15104E is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.2% C 0.108 H 277.4°. Best body text is #FFFFFF at 17.27:1 contrast (WCAG AA passes).

Color values

HEX	#15104E
RGB	rgb(21, 16, 78)
HSL	hsl(245, 66%, 18%)
HSV	hsv(245, 79%, 31%)
CMYK	cmyk(73.1%, 79.5%, 0%, 69.4%)
CIE-LAB	lab(9.64, 24.45, -37.10)
CIE-LCH	lch(9.64, 44.43, 303.38°)
OKLab	oklab(23.15% 0.0139 -0.1072)
OKLCH	oklch(23.15% 0.108 277.4)
XYZ	xyz(1.8693, 1.0799, 7.3162)
Luminance	0.0108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.55

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15104E #494E10

analogous

#102A4E #15104E #34104E

triadic

#15104E #4E1510 #104E15

tetradic

#15104E #4E102A #494E10 #104E34

square

#15104E #4E102A #494E10 #104E34

split-complementary

#15104E #4E3410 #2A4E10

monochromatic

#070519 #07061B #15104E #231A81 #3025B4

Accessibility & contrast

On white

17.27

#15104E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#15104E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15104E

17.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15104E	#FFFFFF	#000000	##FFFFFF
##15104E	1.00	17.27	1.22	17.27
#FFFFFF	17.27	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D50

Deuteranopia (green-blind)

#00184D

Tritanopia (blue-blind)

#00212D

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #15104e;
/* rgb */ color: rgb(21, 16, 78);
/* oklch */ color: oklch(23.2% 0.108 277.4);

Tailwind

colors: {
  custom: {
    50: '#5c4f80',
    500: '#15104e',
    950: '#000000',
  },
}

SCSS

$custom: #15104e;
$custom-light: #5c4f80;
$custom-dark: #000000;

JSON

{
  "hex": "#15104e",
  "rgb": {
    "r": 21,
    "g": 16,
    "b": 78
  },
  "hsl": {
    "h": 244.839,
    "s": 65.957,
    "l": 18.431
  },
  "oklch": {
    "l": 0.23154,
    "c": 0.10806,
    "h": 277.4
  },
  "luminance": 0.0108
}

Semantic roles & 50–950 ramp

primary

#15104E

secondary

#818832

accent

#E93FDB

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #15104E

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

Preview Lab → · Contrast checker → · Palette generator →