#201731
Closest named color: Rich Black (#0D1B2A). oklch(23% 0.05 298.3), rgb(32, 23, 49).
Aa
White text reads best on this color (17.09:1).
About this color
#201731 is a very dark, muted purple. In OKLCH its lightness is 23%, its chroma 0.050 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.039 away. White text reads best on it, at 17.09:1.
| Hue family | Purples |
| Lightness | very dark (23%) |
| Chroma | muted (0.050) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.09:1 |
Values
| HEX | #201731 |
| RGB | rgb(32, 23, 49) |
| HSL | hsl(261, 36%, 14%) |
| OKLCH | oklch(23% 0.05 298.3) |
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 #201731 | 17.09:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #201731 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #201731 text on white | 17.09:1 | AAA | Lc 103.9 | Preferred for body text |
| #201731 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE8F4
oklch(93.7% 0.016 297.5)
-
Step 200
200
#DBD5ED
oklch(88.5% 0.033 297.2)
-
Step 300
300
#C5B9E2
oklch(80.9% 0.058 298.5)
-
Step 400
400
#A894D4
oklch(70.8% 0.094 298.3)
-
Step 500
500
#9378C9
oklch(63.1% 0.122 298.2)
-
Step 600
600
#7E60B5
oklch(55.7% 0.13 298.3)
-
Step 700
700
#6A4E9C
oklch(49% 0.123 298.3)
-
Step 800
800
#57417E
oklch(42.8% 0.1 298.7)
-
Step 900
900
#473766
oklch(37.7% 0.08 298.2)
-
Step 950
950 (this color)
#201731
oklch(23% 0.05 298.3)
#201731 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) | #0F1C32 | 0.032 |
| Deuteranopia (no green cones) | #111B30 | 0.029 |
| Tritanopia (no blue cones) | #1D1C21 | 0.040 |
| Achromatopsia (no color) | #1C1C1C | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #201731
#201731
oklch(23% 0.05 298.3)
- #1B2002
#1B2002
oklch(23.1% 0.05 118.2)
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 #201731, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.039
- Dark #1B2431 ΔE 0.044
- Oxford Blue #1B263B ΔE 0.049
- Jet #212529 ΔE 0.055
- Very Dark Purple #2A0134 ΔE 0.058
- Midnight Purple #280137 ΔE 0.058
- Eggplant #380835 ΔE 0.061
- Dark Purple #35063E ΔE 0.063
Use #201731 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.