#211B2B
Closest named color: Dark (#1B2431). oklch(23.7% 0.031 301.3), rgb(33, 27, 43).
Aa
White text reads best on this color (16.71:1).
About this color
#211B2B is a very dark, muted purple. In OKLCH its lightness is 24%, its chroma 0.031 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.031 away. White text reads best on it, at 16.71:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | muted (0.031) |
| Temperature | in between |
| Nearest name | Dark (#1B2431) |
| Black text | 1.25:1 |
| White text | 16.71:1 |
Values
| HEX | #211B2B |
| RGB | rgb(33, 27, 43) |
| HSL | hsl(263, 23%, 14%) |
| OKLCH | oklch(23.7% 0.031 301.3) |
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 #211B2B | 16.71:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #211B2B | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #211B2B text on white | 16.71:1 | AAA | Lc 103.6 | Preferred for body text |
| #211B2B text on black | 1.25:1 | 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
#F6F5F8
oklch(97.2% 0.004 301.4)
-
Step 100
100
#EBE8F0
oklch(93.6% 0.011 303.1)
-
Step 200
200
#DBD6E5
oklch(88.5% 0.021 301.1)
-
Step 300
300
#C4BCD5
oklch(81% 0.036 300.2)
-
Step 400
400
#A798C0
oklch(70.6% 0.06 302)
-
Step 500
500
#917FB0
oklch(63.1% 0.075 301.1)
-
Step 600
600
#7C689C
oklch(55.7% 0.082 301.5)
-
Step 700
700
#685685
oklch(49% 0.076 301.2)
-
Step 800
800
#55476C
oklch(42.8% 0.062 301.2)
-
Step 900
900
#463B58
oklch(37.6% 0.05 301.4)
-
Step 950
950 (this color)
#211B2B
oklch(23.7% 0.031 301.3)
#211B2B 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) | #181E2C | 0.018 |
| Deuteranopia (no green cones) | #191E2B | 0.017 |
| Tritanopia (no blue cones) | #1F1D21 | 0.023 |
| Achromatopsia (no color) | #1E1E1E | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #211B2B
#211B2B
oklch(23.7% 0.031 301.3)
- #1C2110
#1C2110
oklch(23.7% 0.031 122.2)
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 #211B2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.031
- Rich Black #0D1B2A ΔE 0.034
- Jet #212529 ΔE 0.037
- Oxford Blue #1B263B ΔE 0.042
- Space Cadet #2B2D42 ΔE 0.070
- Eggplant #380835 ΔE 0.070
- Very Dark Purple #2A0134 ΔE 0.074
- Midnight Purple #280137 ΔE 0.076
Use #211B2B 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.