#101913
Closest named color: Rich Black (#0D1B2A). oklch(20.2% 0.018 155.3), rgb(16, 25, 19).
Aa
White text reads best on this color (17.94:1).
About this color
#101913 is a very dark close to neutral grey. In OKLCH its lightness is 20%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.044 away. White text reads best on it, at 17.94:1.
| Hue family | Neutrals |
| Lightness | very dark (20%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.94:1 |
Values
| HEX | #101913 |
| RGB | rgb(16, 25, 19) |
| HSL | hsl(140, 22%, 8%) |
| OKLCH | oklch(20.2% 0.018 155.3) |
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 #101913 | 17.94:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #101913 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #101913 text on white | 17.94:1 | AAA | Lc 104.7 | Preferred for body text |
| #101913 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBE8
oklch(93.6% 0.006 153.8)
-
Step 200
200
#D3DBD6
oklch(88.4% 0.011 158.8)
-
Step 300
300
#B6C5BB
oklch(80.9% 0.021 156.7)
-
Step 400
400
#91A798
oklch(70.7% 0.033 155.7)
-
Step 500
500
#75927E
oklch(63.2% 0.044 154.8)
-
Step 600
600
#5D7C67
oklch(55.6% 0.048 154.9)
-
Step 700
700
#4D6856
oklch(49% 0.043 155.3)
-
Step 800
800
#3F5546
oklch(42.6% 0.037 154.8)
-
Step 900
900
#36463B
oklch(37.7% 0.028 154.9)
-
Step 950
950 (this color)
#101913
oklch(20.2% 0.018 155.3)
#101913 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) | #191813 | 0.016 |
| Deuteranopia (no green cones) | #171713 | 0.014 |
| Tritanopia (no blue cones) | #0F1917 | 0.008 |
| Achromatopsia (no color) | #171717 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #101913
#101913
oklch(20.2% 0.018 155.3)
- #1C131A
#1C131A
oklch(20.1% 0.02 334.3)
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 #101913, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.044
- Rich Navy #001219 ΔE 0.044
- Almost Black #070D0D ΔE 0.051
- Jet #212529 ΔE 0.063
- Dark #1B2431 ΔE 0.066
- Dark Brown #341C02 ΔE 0.077
- Very Dark Brown #1D0200 ΔE 0.083
- Oxford Blue #1B263B ΔE 0.084
Use #101913 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.