#231C30
Closest named color: Dark (#1B2431). oklch(24.5% 0.038 299.7), rgb(35, 28, 48).
Aa
White text reads best on this color (16.40:1).
About this color
#231C30 is a very dark, muted purple. In OKLCH its lightness is 24%, its chroma 0.038 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.029 away. White text reads best on it, at 16.40:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | muted (0.038) |
| Temperature | in between |
| Nearest name | Dark (#1B2431) |
| Black text | 1.28:1 |
| White text | 16.40:1 |
Values
| HEX | #231C30 |
| RGB | rgb(35, 28, 48) |
| HSL | hsl(261, 26%, 15%) |
| OKLCH | oklch(24.5% 0.038 299.7) |
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 #231C30 | 16.40:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #231C30 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #231C30 text on white | 16.40:1 | AAA | Lc 103.3 | Preferred for body text |
| #231C30 text on black | 1.28:1 | 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
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EBE8F2
oklch(93.6% 0.014 299.8)
-
Step 200
200
#DBD6E8
oklch(88.5% 0.025 298.6)
-
Step 300
300
#C5BBDA
oklch(81% 0.044 300.1)
-
Step 400
400
#A797C8
oklch(70.8% 0.072 299.5)
-
Step 500
500
#927CBA
oklch(63% 0.094 300)
-
Step 600
600
#7C65A6
oklch(55.6% 0.101 299.4)
-
Step 700
700
#69548E
oklch(49.2% 0.093 299.7)
-
Step 800
800
#554573
oklch(42.7% 0.076 299.2)
-
Step 900
900
#463A5D
oklch(37.7% 0.06 299.3)
-
Step 950
950 (this color)
#231C30
oklch(24.5% 0.038 299.7)
#231C30 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) | #171F31 | 0.022 |
| Deuteranopia (no green cones) | #191F2F | 0.020 |
| Tritanopia (no blue cones) | #211F23 | 0.031 |
| Achromatopsia (no color) | #1F1F1F | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231C30
#231C30
oklch(24.5% 0.038 299.7)
- #1E230D
#1E230D
oklch(24.5% 0.038 119.9)
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 #231C30, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.029
- Oxford Blue #1B263B ΔE 0.036
- Jet #212529 ΔE 0.038
- Rich Black #0D1B2A ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.062
- Eggplant #380835 ΔE 0.065
- Dark Purple #35063E ΔE 0.070
- Aubergine #3D0734 ΔE 0.072
Use #231C30 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.