#150721
Closest named color: Rich Navy (#001219). oklch(16.8% 0.054 306.5), rgb(21, 7, 33).
Aa
White text reads best on this color (19.36:1).
About this color
#150721 is a very dark, muted purple. In OKLCH its lightness is 17%, its chroma 0.054 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.060 away. White text reads best on it, at 19.36:1.
| Hue family | Purples |
| Lightness | very dark (17%) |
| Chroma | muted (0.054) |
| Temperature | in between |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.08:1 |
| White text | 19.36:1 |
Values
| HEX | #150721 |
| RGB | rgb(21, 7, 33) |
| HSL | hsl(272, 65%, 8%) |
| OKLCH | oklch(16.8% 0.054 306.5) |
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 #150721 | 19.36:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #150721 | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #150721 text on white | 19.36:1 | AAA | Lc 105.5 | Preferred for body text |
| #150721 text on black | 1.08:1 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F4
oklch(93.6% 0.018 306.7)
-
Step 200
200
#DFD3EC
oklch(88.4% 0.036 307.2)
-
Step 300
300
#CBB6E2
oklch(80.8% 0.065 306.6)
-
Step 400
400
#B18FD3
oklch(70.6% 0.103 306.8)
-
Step 500
500
#9E72C8
oklch(63.1% 0.133 306.5)
-
Step 600
600
#8959B4
oklch(55.6% 0.143 306.7)
-
Step 700
700
#74499B
oklch(49.1% 0.132 306.4)
-
Step 800
800
#5F3C7E
oklch(42.8% 0.111 306.8)
-
Step 900
900
#4D3465
oklch(37.7% 0.086 306.3)
-
Step 950
950 (this color)
#150721
oklch(16.8% 0.054 306.5)
#150721 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) | #010D22 | 0.045 |
| Deuteranopia (no green cones) | #040E20 | 0.041 |
| Tritanopia (no blue cones) | #130C12 | 0.040 |
| Achromatopsia (no color) | #0E0E0E | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #150721
#150721
oklch(16.8% 0.054 306.5)
- #0A1200
#0A1200
oklch(16.8% 0.043 126.5)
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 #150721, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.060
- Midnight #03012D ΔE 0.060
- Almost Black #070D0D ΔE 0.061
- Midnight Purple #280137 ΔE 0.063
- Very Dark Purple #2A0134 ΔE 0.063
- Dark Navy Blue #00022E ΔE 0.066
- Dark Navy #000435 ΔE 0.067
- Rich Black #0D1B2A ΔE 0.067
Use #150721 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.