#201733
Closest named color: Rich Black (#0D1B2A). oklch(23.1% 0.053 296.8), rgb(32, 23, 51).
Aa
White text reads best on this color (17.04:1).
About this color
#201733 is a very dark, muted purple. In OKLCH its lightness is 23%, its chroma 0.053 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.040 away. White text reads best on it, at 17.04:1.
| Hue family | Purples |
| Lightness | very dark (23%) |
| Chroma | muted (0.053) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.23:1 |
| White text | 17.04:1 |
Values
| HEX | #201733 |
| RGB | rgb(32, 23, 51) |
| HSL | hsl(259, 38%, 15%) |
| OKLCH | oklch(23.1% 0.053 296.8) |
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 #201733 | 17.04:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #201733 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #201733 text on white | 17.04:1 | AAA | Lc 103.9 | Preferred for body text |
| #201733 text on black | 1.23:1 | 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
#A793D8
oklch(70.7% 0.101 297.1)
-
Step 500
500
#9277CE
oklch(63.1% 0.13 296.8)
-
Step 600
600
#7D5EBB
oklch(55.6% 0.142 296.9)
-
Step 700
700
#694DA1
oklch(49% 0.131 296.6)
-
Step 800
800
#564082
oklch(42.7% 0.107 297)
-
Step 900
900
#473769
oklch(37.8% 0.084 296.9)
-
Step 950
950 (this color)
#201733
oklch(23.1% 0.053 296.8)
#201733 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) | #0E1C34 | 0.033 |
| Deuteranopia (no green cones) | #101C32 | 0.031 |
| Tritanopia (no blue cones) | #1C1C22 | 0.042 |
| Achromatopsia (no color) | #1C1C1C | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #201733
#201733
oklch(23.1% 0.053 296.8)
- #1C2000
#1C2000
oklch(23.1% 0.053 116.3)
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 #201733, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.040
- Dark #1B2431 ΔE 0.045
- Oxford Blue #1B263B ΔE 0.048
- Midnight Purple #280137 ΔE 0.057
- Jet #212529 ΔE 0.057
- Very Dark Purple #2A0134 ΔE 0.057
- Eggplant #380835 ΔE 0.061
- Dark Purple #35063E ΔE 0.061
Use #201733 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.