#100721
Closest named color: Midnight (#03012D). oklch(16% 0.053 296.2), rgb(16, 7, 33).
Aa
White text reads best on this color (19.54:1).
About this color
#100721 is a very dark, muted purple. In OKLCH its lightness is 16%, its chroma 0.053 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight (#03012D), ΔE 0.050 away. White text reads best on it, at 19.54:1.
| Hue family | Purples |
| Lightness | very dark (16%) |
| Chroma | muted (0.053) |
| Temperature | in between |
| Nearest name | Midnight (#03012D) |
| Black text | 1.07:1 |
| White text | 19.54:1 |
Values
| HEX | #100721 |
| RGB | rgb(16, 7, 33) |
| HSL | hsl(261, 65%, 8%) |
| OKLCH | oklch(16% 0.053 296.2) |
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 #100721 | 19.54:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #100721 | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #100721 text on white | 19.54:1 | AAA | Lc 105.6 | Preferred for body text |
| #100721 text on black | 1.07:1 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE8F5
oklch(93.7% 0.018 296.6)
-
Step 200
200
#DBD5EE
oklch(88.5% 0.035 296.7)
-
Step 300
300
#C4B9E5
oklch(80.9% 0.062 296.4)
-
Step 400
400
#A693D8
oklch(70.6% 0.101 296.4)
-
Step 500
500
#9177CE
oklch(63% 0.13 296.3)
-
Step 600
600
#7C5FBB
oklch(55.7% 0.14 296.1)
-
Step 700
700
#694EA1
oklch(49.2% 0.13 296.3)
-
Step 800
800
#554082
oklch(42.6% 0.107 296.2)
-
Step 900
900
#463769
oklch(37.7% 0.084 295.9)
-
Step 950
950 (this color)
#100721
oklch(16% 0.053 296.2)
#100721 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) | #000C22 | 0.037 |
| Deuteranopia (no green cones) | #010C20 | 0.035 |
| Tritanopia (no blue cones) | #0C0C12 | 0.041 |
| Achromatopsia (no color) | #0C0C0C | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100721
#100721
oklch(16% 0.053 296.2)
- #0D0F00
#0D0F00
oklch(16.1% 0.036 115)
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 #100721, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight #03012D ΔE 0.050
- Rich Navy #001219 ΔE 0.054
- Dark Navy Blue #00022E ΔE 0.056
- Almost Black #070D0D ΔE 0.056
- Dark Navy #000435 ΔE 0.058
- Very Dark Blue #000133 ΔE 0.062
- Rich Black #0D1B2A ΔE 0.068
- Midnight Purple #280137 ΔE 0.072
Use #100721 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.