#1D104B#1D104B
#1D104B is a very dark, moderate violet. Relative luminance 0.011; OKLCH L 23.6% C 0.102 H 285.6°. Best body text is #FFFFFF at 17.10:1 contrast (WCAG AA passes).
Color values
| HEX | #1D104B |
|---|---|
| RGB | rgb(29, 16, 75) |
| HSL | hsl(253, 65%, 18%) |
| HSV | hsv(253, 79%, 29%) |
| CMYK | cmyk(61.3%, 78.7%, 0%, 70.6%) |
| CIE-LAB | lab(10.10, 24.63, -34.23) |
| CIE-LCH | lch(10.10, 42.17, 305.73°) |
| OKLab | oklab(23.58% 0.0275 -0.0985) |
| OKLCH | oklch(23.58% 0.102 285.6) |
| XYZ | xyz(1.9616, 1.1397, 6.7719) |
| Luminance | 0.0114 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Dark Indigo
#1F0954
ΔE00 3.03
Night Blue
#040348
ΔE00 4.06
Navy Blue (survey)
#001146
ΔE00 4.72
Dark Blue
#00035B
ΔE00 5.96
Midnight Blue (survey)
#020035
ΔE00 6.06
Darkblue (survey)
#030764
ΔE00 6.41
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1D104B #3E4B10
analogous
#10214B #1D104B #3A104B
triadic
#1D104B #4B1D10 #104B1D
tetradic
#1D104B #4B1021 #3E4B10 #104B3A
square
#1D104B #4B1021 #3E4B10 #104B3A
split-complementary
#1D104B #4B3A10 #214B10
monochromatic
#0A0519 #0A0519 #1D104B #311B7D #4426B0
Accessibility & contrast
On white
17.10
#1D104B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.23
#1D104B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1D104B
17.10:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1D104B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1D104B | 1.00 | 17.10 | 1.23 | 17.10 |
| #FFFFFF | 17.10 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.23 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.10 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#001D4D
Deuteranopia (green-blind)
#001A4A
Tritanopia (blue-blind)
#08202C
Achromatopsia (no color)
#1C1C1C
Design tokens & code
CSS
--color: #1d104b; /* rgb */ color: rgb(29, 16, 75); /* oklch */ color: oklch(23.6% 0.102 285.6);
Tailwind
colors: {
custom: {
50: '#5f4f7e',
500: '#1d104b',
950: '#000000',
},
}SCSS
$custom: #1d104b; $custom-light: #5f4f7e; $custom-dark: #000000;
JSON
{
"hex": "#1d104b",
"rgb": {
"r": 29,
"g": 16,
"b": 75
},
"hsl": {
"h": 253.22,
"s": 64.835,
"l": 17.843
},
"oklch": {
"l": 0.23582,
"c": 0.10226,
"h": 285.6
},
"luminance": 0.0114
}Semantic roles & 50–950 ramp
primary
#1D104B
secondary
#738532
accent
#E840C3
background
#F5F4F7
surface
#EAE7EE
border
#C6C3C9
text
#05020A
muted
#79787C