#21143B
Closest named color: Midnight Purple (#280137). oklch(23.2% 0.072 295.6), rgb(33, 20, 59).
Aa
White text reads best on this color (17.10:1).
About this color
#21143B is a very dark, moderately saturated purple. In OKLCH its lightness is 23%, its chroma 0.072 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.046 away. White text reads best on it, at 17.10:1.
| Hue family | Purples |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.22:1 |
| White text | 17.10:1 |
Values
| HEX | #21143B |
| RGB | rgb(33, 20, 59) |
| HSL | hsl(260, 49%, 15%) |
| OKLCH | oklch(23.2% 0.072 295.6) |
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 #21143B | 17.10:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #21143B | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #21143B text on white | 17.10:1 | AAA | Lc 103.8 | Preferred for body text |
| #21143B text on black | 1.22:1 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EBE7F9
oklch(93.6% 0.024 296.1)
-
Step 200
200
#DBD3F6
oklch(88.4% 0.048 295.9)
-
Step 300
300
#C5B6F2
oklch(80.9% 0.085 295.9)
-
Step 400
400
#A88EEC
oklch(70.8% 0.136 295.4)
-
Step 500
500
#946EE6
oklch(63.1% 0.175 295.6)
-
Step 600
600
#8052D4
oklch(55.6% 0.191 295.9)
-
Step 700
700
#6C42B7
oklch(49.1% 0.176 295.7)
-
Step 800
800
#583794
oklch(42.7% 0.146 295.9)
-
Step 900
900
#483176
oklch(37.7% 0.114 295.8)
-
Step 950
950 (this color)
#21143B
oklch(23.2% 0.072 295.6)
#21143B 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) | #021C3C | 0.050 |
| Deuteranopia (no green cones) | #051B3A | 0.046 |
| Tritanopia (no blue cones) | #1B1C25 | 0.056 |
| Achromatopsia (no color) | #1C1C1C | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21143B
#21143B
oklch(23.2% 0.072 295.6)
- #1D2000
#1D2000
oklch(23.2% 0.053 114.7)
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 #21143B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.046
- Very Dark Purple #2A0134 ΔE 0.048
- Dark Purple #35063E ΔE 0.051
- Dark Indigo #1F0954 ΔE 0.052
- Rich Black #0D1B2A ΔE 0.055
- Eggplant #380835 ΔE 0.057
- Oxford Blue #1B263B ΔE 0.057
- Deep Purple #36013F ΔE 0.058
Use #21143B 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.