#100B2B
Closest named color: Dark Navy (#000435). oklch(17.9% 0.062 285.4), rgb(16, 11, 43).
Aa
White text reads best on this color (19.00:1).
About this color
#100B2B is a very dark, muted purple. In OKLCH its lightness is 18%, its chroma 0.062 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Navy (#000435), ΔE 0.048 away. White text reads best on it, at 19.00:1.
| Hue family | Purples |
| Lightness | very dark (18%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dark Navy (#000435) |
| Black text | 1.10:1 |
| White text | 19.00:1 |
Values
| HEX | #100B2B |
| RGB | rgb(16, 11, 43) |
| HSL | hsl(249, 59%, 11%) |
| OKLCH | oklch(17.9% 0.062 285.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #100B2B | 19.00:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #100B2B | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #100B2B text on white | 19.00:1 | AAA | Lc 105.3 | Preferred for body text |
| #100B2B text on black | 1.10:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E8E8F8
oklch(93.6% 0.022 286)
-
Step 200
200
#D6D6F4
oklch(88.5% 0.041 285.5)
-
Step 300
300
#BBBAEF
oklch(80.8% 0.074 285.5)
-
Step 400
400
#9A95E7
oklch(70.7% 0.118 285.7)
-
Step 500
500
#8279DF
oklch(63% 0.15 285.3)
-
Step 600
600
#6D60CD
oklch(55.7% 0.163 285.2)
-
Step 700
700
#5B4EB2
oklch(49.1% 0.153 285.2)
-
Step 800
800
#4B4190
oklch(42.8% 0.126 285.6)
-
Step 900
900
#3E3873
oklch(37.8% 0.098 285.3)
-
Step 950
950 (this color)
#100B2B
oklch(17.9% 0.062 285.4)
#100B2B with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #00112C | 0.032 |
| Deuteranopia (no green cones) | #000F2A | 0.031 |
| Tritanopia (no blue cones) | #061219 | 0.051 |
| Achromatopsia (no color) | #101010 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100B2B
#100B2B
oklch(17.9% 0.062 285.4)
- #141200
#141200
oklch(17.9% 0.038 104.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #100B2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Navy #000435 ΔE 0.048
- Midnight #03012D ΔE 0.049
- Dark Navy Blue #00022E ΔE 0.053
- Rich Black #0D1B2A ΔE 0.054
- Very Dark Blue #000133 ΔE 0.056
- Rich Navy #001219 ΔE 0.056
- Navy Blue #001146 ΔE 0.060
- Midnight Purple #280137 ΔE 0.063
Use #100B2B in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.