#231B2C
Closest named color: Dark (#1B2431). oklch(24% 0.034 305.5), rgb(35, 27, 44).
Aa
White text reads best on this color (16.60:1).
About this color
#231B2C is a very dark, muted purple. In OKLCH its lightness is 24%, its chroma 0.034 and its hue 306°. 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 16.60:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | muted (0.034) |
| Temperature | in between |
| Nearest name | Dark (#1B2431) |
| Black text | 1.26:1 |
| White text | 16.60:1 |
Values
| HEX | #231B2C |
| RGB | rgb(35, 27, 44) |
| HSL | hsl(268, 24%, 14%) |
| OKLCH | oklch(24% 0.034 305.5) |
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 #231B2C | 16.60:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #231B2C | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #231B2C text on white | 16.60:1 | AAA | Lc 103.5 | Preferred for body text |
| #231B2C text on black | 1.26:1 | 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
#ECE8F0
oklch(93.6% 0.011 308.3)
-
Step 200
200
#DCD6E5
oklch(88.5% 0.021 304)
-
Step 300
300
#C7BBD6
oklch(81% 0.04 305.6)
-
Step 400
400
#AA97C1
oklch(70.7% 0.064 305.4)
-
Step 500
500
#957DB1
oklch(63.1% 0.081 305.3)
-
Step 600
600
#80659D
oklch(55.5% 0.09 305.8)
-
Step 700
700
#6C5486
oklch(49.1% 0.083 305.6)
-
Step 800
800
#58456D
oklch(42.7% 0.068 305.5)
-
Step 900
900
#483A58
oklch(37.6% 0.053 305.4)
-
Step 950
950 (this color)
#231B2C
oklch(24% 0.034 305.5)
#231B2C 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) | #181E2D | 0.021 |
| Deuteranopia (no green cones) | #191E2C | 0.020 |
| Tritanopia (no blue cones) | #221D21 | 0.025 |
| Achromatopsia (no color) | #1E1E1E | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231B2C
#231B2C
oklch(24% 0.034 305.5)
- #1B2210
#1B2210
oklch(23.9% 0.034 126.2)
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 #231B2C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.031
- Jet #212529 ΔE 0.037
- Rich Black #0D1B2A ΔE 0.039
- Oxford Blue #1B263B ΔE 0.041
- Eggplant #380835 ΔE 0.067
- Space Cadet #2B2D42 ΔE 0.067
- Very Dark Purple #2A0134 ΔE 0.073
- Dark Purple #35063E ΔE 0.073
Use #231B2C 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.