#23180A
Closest named color: Dark Brown (#341C02). oklch(21.9% 0.03 71.9), rgb(35, 24, 10).
Aa
White text reads best on this color (17.40:1).
About this color
#23180A is a very dark close to neutral grey. In OKLCH its lightness is 22%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Dark Brown (#341C02), ΔE 0.042 away. White text reads best on it, at 17.40:1.
| Hue family | Neutrals |
| Lightness | very dark (22%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.20:1 |
| White text | 17.40:1 |
Values
| HEX | #23180A |
| RGB | rgb(35, 24, 10) |
| HSL | hsl(34, 56%, 9%) |
| OKLCH | oklch(21.9% 0.03 71.9) |
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 #23180A | 17.40:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #23180A | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #23180A text on white | 17.40:1 | AAA | Lc 104.2 | Preferred for body text |
| #23180A text on black | 1.20:1 | 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
#F7F5F2
oklch(97.1% 0.005 78.3)
-
Step 100
100
#EEE9E3
oklch(93.6% 0.01 72.7)
-
Step 200
200
#E2D7CB
oklch(88.5% 0.02 70)
-
Step 300
300
#CFBDA8
oklch(80.8% 0.035 71.6)
-
Step 400
400
#B79B7A
oklch(70.6% 0.056 71.3)
-
Step 500
500
#A58258
oklch(63% 0.072 71)
-
Step 600
600
#906B3D
oklch(55.5% 0.078 71)
-
Step 700
700
#7B5A2F
oklch(49.3% 0.073 72)
-
Step 800
800
#644927
oklch(42.7% 0.061 71.3)
-
Step 900
900
#513D25
oklch(37.6% 0.046 70.7)
-
Step 950
950 (this color)
#23180A
oklch(21.9% 0.03 71.9)
#23180A 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) | #1C1809 | 0.015 |
| Deuteranopia (no green cones) | #1F1B0A | 0.013 |
| Tritanopia (no blue cones) | #271515 | 0.026 |
| Achromatopsia (no color) | #1A1A1A | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23180A
#23180A
oklch(21.9% 0.03 71.9)
- #101B28
#101B28
oklch(21.9% 0.03 253.2)
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 #23180A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.042
- Jet #212529 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.066
- Chocolate Brown #411900 ΔE 0.068
- Dark #1B2431 ΔE 0.070
- Dark Maroon #3C0008 ΔE 0.076
- Almost Black #070D0D ΔE 0.076
- Very Dark Brown #1D0200 ΔE 0.076
Use #23180A 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.