#230B17
Closest named color: Very Dark Brown (#1D0200). oklch(19.3% 0.045 350.8), rgb(35, 11, 23).
Aa
White text reads best on this color (18.55:1).
About this color
#230B17 is a very dark, muted red. In OKLCH its lightness is 19%, its chroma 0.045 and its hue 351°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.056 away. White text reads best on it, at 18.55:1.
| Hue family | Reds |
| Lightness | very dark (19%) |
| Chroma | muted (0.045) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.13:1 |
| White text | 18.55:1 |
Values
| HEX | #230B17 |
| RGB | rgb(35, 11, 23) |
| HSL | hsl(330, 52%, 9%) |
| OKLCH | oklch(19.3% 0.045 350.8) |
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 #230B17 | 18.55:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #230B17 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #230B17 text on white | 18.55:1 | AAA | Lc 105.0 | Preferred for body text |
| #230B17 text on black | 1.13:1 | 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
#F3E6EB
oklch(93.7% 0.016 352)
-
Step 200
200
#E9D2DB
oklch(88.5% 0.028 352)
-
Step 300
300
#DDB3C5
oklch(80.9% 0.054 350.8)
-
Step 400
400
#CA8BA7
oklch(70.8% 0.085 351.2)
-
Step 500
500
#BB6D92
oklch(63.2% 0.109 350.8)
-
Step 600
600
#A6547C
oklch(55.7% 0.118 351)
-
Step 700
700
#8E4468
oklch(49.2% 0.109 351.4)
-
Step 800
800
#733855
oklch(42.6% 0.091 350.8)
-
Step 900
900
#5D3146
oklch(37.7% 0.07 351)
-
Step 950
950 (this color)
#230B17
oklch(19.3% 0.045 350.8)
#230B17 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) | #0E1117 | 0.049 |
| Deuteranopia (no green cones) | #141516 | 0.045 |
| Tritanopia (no blue cones) | #260A10 | 0.015 |
| Achromatopsia (no color) | #131313 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #230B17
#230B17
oklch(19.3% 0.045 350.8)
- #001A12
#001A12
oklch(19.4% 0.038 170.2)
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 #230B17, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.056
- Dark Maroon #3C0008 ΔE 0.065
- Rich Black #0D1B2A ΔE 0.066
- Very Dark Purple #2A0134 ΔE 0.067
- Almost Black #070D0D ΔE 0.068
- Midnight Purple #280137 ΔE 0.072
- Rich Navy #001219 ΔE 0.073
- Eggplant #380835 ΔE 0.076
Use #230B17 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.