#1B170A
Closest named color: Dark Brown (#341C02). oklch(20.5% 0.024 92.9), rgb(27, 23, 10).
Aa
White text reads best on this color (17.89:1).
About this color
#1B170A is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Dark Brown (#341C02), ΔE 0.059 away. White text reads best on it, at 17.89:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.17:1 |
| White text | 17.89:1 |
Values
| HEX | #1B170A |
| RGB | rgb(27, 23, 10) |
| HSL | hsl(46, 46%, 7%) |
| OKLCH | oklch(20.5% 0.024 92.9) |
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 #1B170A | 17.89:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #1B170A | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #1B170A text on white | 17.89:1 | AAA | Lc 104.6 | Preferred for body text |
| #1B170A text on black | 1.17:1 | 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
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#ECEAE4
oklch(93.7% 0.008 91.5)
-
Step 200
200
#DDD9CE
oklch(88.5% 0.015 90.2)
-
Step 300
300
#C7C1AC
oklch(81% 0.029 93.8)
-
Step 400
400
#AAA080
oklch(70.6% 0.046 92.8)
-
Step 500
500
#968960
oklch(63.1% 0.059 92.6)
-
Step 600
600
#807347
oklch(55.7% 0.064 93.5)
-
Step 700
700
#6C6038
oklch(49.1% 0.059 93.3)
-
Step 800
800
#584E2F
oklch(42.6% 0.048 92.2)
-
Step 900
900
#48412A
oklch(37.6% 0.038 93.2)
-
Step 950
950 (this color)
#1B170A
oklch(20.5% 0.024 92.9)
#1B170A 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) | #1A1709 | 0.003 |
| Deuteranopia (no green cones) | #1B180A | 0.004 |
| Tritanopia (no blue cones) | #1D1514 | 0.022 |
| Achromatopsia (no color) | #171717 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B170A
#1B170A
oklch(20.5% 0.024 92.9)
- #131722
#131722
oklch(20.6% 0.023 268.9)
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 #1B170A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.059
- Almost Black #070D0D ΔE 0.060
- Rich Black #0D1B2A ΔE 0.060
- Rich Navy #001219 ΔE 0.062
- Jet #212529 ΔE 0.066
- Very Dark Brown #1D0200 ΔE 0.071
- Dark #1B2431 ΔE 0.074
- Chocolate Brown #411900 ΔE 0.086
Use #1B170A 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.