#15104C#15104C
#15104C is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.9% C 0.105 H 277.8°. Best body text is #FFFFFF at 17.35:1 contrast (WCAG AA passes).
Color values
| HEX | #15104C |
|---|---|
| RGB | rgb(21, 16, 76) |
| HSL | hsl(245, 65%, 18%) |
| HSV | hsv(245, 79%, 30%) |
| CMYK | cmyk(72.4%, 78.9%, 0%, 70.2%) |
| CIE-LAB | lab(9.41, 23.69, -36.09) |
| CIE-LCH | lch(9.41, 43.17, 303.29°) |
| OKLab | oklab(22.93% 0.0143 -0.1042) |
| OKLCH | oklch(22.93% 0.105 277.8) |
| XYZ | xyz(1.7986, 1.0517, 6.9443) |
| Luminance | 0.0105 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Night Blue
#040348
ΔE00 3.22
Navy Blue (survey)
#001146
ΔE00 3.37
Dark Indigo
#1F0954
ΔE00 3.40
Midnight Blue (survey)
#020035
ΔE00 5.25
Dark Blue
#00035B
ΔE00 5.29
Dark Navy
#000435
ΔE00 5.66
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#15104C #474C10
analogous
#10294C #15104C #33104C
triadic
#15104C #4C1510 #104C15
tetradic
#15104C #4C1029 #474C10 #104C33
square
#15104C #4C1029 #474C10 #104C33
split-complementary
#15104C #4C3310 #294C10
monochromatic
#070519 #070519 #15104C #231B7F #3125B1
Accessibility & contrast
On white
17.35
#15104C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.21
#15104C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #15104C
17.35:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##15104C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##15104C | 1.00 | 17.35 | 1.21 | 17.35 |
| #FFFFFF | 17.35 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.21 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.35 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#001D4E
Deuteranopia (green-blind)
#00184B
Tritanopia (blue-blind)
#00212C
Achromatopsia (no color)
#1A1A1A
Design tokens & code
CSS
--color: #15104c; /* rgb */ color: rgb(21, 16, 76); /* oklch */ color: oklch(22.9% 0.105 277.8);
Tailwind
colors: {
custom: {
50: '#5b4f7f',
500: '#15104c',
950: '#000000',
},
}SCSS
$custom: #15104c; $custom-light: #5b4f7f; $custom-dark: #000000;
JSON
{
"hex": "#15104c",
"rgb": {
"r": 21,
"g": 16,
"b": 76
},
"hsl": {
"h": 245,
"s": 65.217,
"l": 18.039
},
"oklch": {
"l": 0.22925,
"c": 0.10518,
"h": 277.8
},
"luminance": 0.01052
}Semantic roles & 50–950 ramp
primary
#15104C
secondary
#7F8632
accent
#E840DA
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#04020A
muted
#79787C