#230E18
Closest named color: Rich Black (#0D1B2A). oklch(20% 0.039 351.3), rgb(35, 14, 24).
Aa
White text reads best on this color (18.30:1).
About this color
#230E18 is a very dark, muted red. In OKLCH its lightness is 20%, its chroma 0.039 and its hue 351°. Its hue sits on the warm side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.060 away. White text reads best on it, at 18.30:1.
| Hue family | Reds |
| Lightness | very dark (20%) |
| Chroma | muted (0.039) |
| Temperature | warm |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.14:1 |
| White text | 18.30:1 |
Values
| HEX | #230E18 |
| RGB | rgb(35, 14, 24) |
| HSL | hsl(331, 43%, 10%) |
| OKLCH | oklch(20% 0.039 351.3) |
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 #230E18 | 18.30:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #230E18 | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #230E18 text on white | 18.30:1 | AAA | Lc 104.8 | Preferred for body text |
| #230E18 text on black | 1.14:1 | 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
#F9F4F6
oklch(97.2% 0.006 350.8)
-
Step 100
100
#F1E6EB
oklch(93.5% 0.014 348)
-
Step 200
200
#E7D3DB
oklch(88.5% 0.025 351.4)
-
Step 300
300
#D9B5C4
oklch(80.9% 0.046 351.2)
-
Step 400
400
#C58EA6
oklch(70.7% 0.074 351.3)
-
Step 500
500
#B57190
oklch(63.1% 0.094 351.3)
-
Step 600
600
#A0597A
oklch(55.6% 0.102 351.6)
-
Step 700
700
#894867
oklch(49.1% 0.096 351.3)
-
Step 800
800
#6F3C54
oklch(42.7% 0.078 351.3)
-
Step 900
900
#5A3345
oklch(37.6% 0.062 351.3)
-
Step 950
950 (this color)
#230E18
oklch(20% 0.039 351.3)
#230E18 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) | #101318 | 0.043 |
| Deuteranopia (no green cones) | #161617 | 0.038 |
| Tritanopia (no blue cones) | #260D12 | 0.013 |
| Achromatopsia (no color) | #151515 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #230E18
#230E18
oklch(20% 0.039 351.3)
- #001B14
#001B14
oklch(19.8% 0.038 173.3)
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 #230E18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.060
- Very Dark Brown #1D0200 ΔE 0.061
- Dark Maroon #3C0008 ΔE 0.065
- Almost Black #070D0D ΔE 0.067
- Very Dark Purple #2A0134 ΔE 0.070
- Rich Navy #001219 ΔE 0.070
- Midnight Purple #280137 ΔE 0.074
- Jet #212529 ΔE 0.075
Use #230E18 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.