#101810
Closest named color: Rich Navy (#001219). oklch(19.8% 0.02 144.8), rgb(16, 24, 16).
Aa
White text reads best on this color (18.10:1).
About this color
#101810 is a very dark close to neutral grey. In OKLCH its lightness is 20%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.044 away. White text reads best on it, at 18.10:1.
| Hue family | Neutrals |
| Lightness | very dark (20%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.16:1 |
| White text | 18.10:1 |
Values
| HEX | #101810 |
| RGB | rgb(16, 24, 16) |
| HSL | hsl(120, 20%, 8%) |
| OKLCH | oklch(19.8% 0.02 144.8) |
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 #101810 | 18.10:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #101810 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #101810 text on white | 18.10:1 | AAA | Lc 104.8 | Preferred for body text |
| #101810 text on black | 1.16:1 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D4DBD4
oklch(88.4% 0.012 145.5)
-
Step 300
300
#B8C5B7
oklch(80.9% 0.024 143.3)
-
Step 400
400
#93A792
oklch(70.7% 0.038 143.9)
-
Step 500
500
#789278
oklch(63.2% 0.048 145)
-
Step 600
600
#617C60
oklch(55.7% 0.053 143.9)
-
Step 700
700
#506850
oklch(49.1% 0.047 144.8)
-
Step 800
800
#415541
oklch(42.7% 0.041 144.8)
-
Step 900
900
#374637
oklch(37.6% 0.032 144.9)
-
Step 950
950 (this color)
#101810
oklch(19.8% 0.02 144.8)
#101810 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) | #181610 | 0.016 |
| Deuteranopia (no green cones) | #171610 | 0.014 |
| Tritanopia (no blue cones) | #0F1816 | 0.012 |
| Achromatopsia (no color) | #161616 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #101810
#101810
oklch(19.8% 0.02 144.8)
- #1A131B
#1A131B
oklch(19.9% 0.019 322.1)
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 #101810, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.044
- Almost Black #070D0D ΔE 0.048
- Rich Black #0D1B2A ΔE 0.049
- Jet #212529 ΔE 0.068
- Dark #1B2431 ΔE 0.072
- Dark Brown #341C02 ΔE 0.078
- Very Dark Brown #1D0200 ΔE 0.079
- Dark Forest Green #002D04 ΔE 0.087
Use #101810 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.