#101C13
Closest named color: Rich Black (#0D1B2A). oklch(21.2% 0.025 151.7), rgb(16, 28, 19).
Aa
White text reads best on this color (17.53:1).
About this color
#101C13 is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.047 away. White text reads best on it, at 17.53:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.53:1 |
Values
| HEX | #101C13 |
| RGB | rgb(16, 28, 19) |
| HSL | hsl(135, 27%, 9%) |
| OKLCH | oklch(21.2% 0.025 151.7) |
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 #101C13 | 17.53:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #101C13 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #101C13 text on white | 17.53:1 | AAA | Lc 104.3 | Preferred for body text |
| #101C13 text on black | 1.19:1 | 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
#E6EBE7
oklch(93.5% 0.008 151.9)
-
Step 200
200
#D2DCD4
oklch(88.5% 0.015 151.7)
-
Step 300
300
#B3C6B7
oklch(80.8% 0.029 151.8)
-
Step 400
400
#8CA992
oklch(70.6% 0.046 151.2)
-
Step 500
500
#6F9478
oklch(63.1% 0.059 151.9)
-
Step 600
600
#567E60
oklch(55.5% 0.065 151.7)
-
Step 700
700
#466B50
oklch(49.2% 0.06 152.2)
-
Step 800
800
#3A5741
oklch(42.7% 0.05 151.4)
-
Step 900
900
#324837
oklch(37.8% 0.04 151.2)
-
Step 950
950 (this color)
#101C13
oklch(21.2% 0.025 151.7)
#101C13 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) | #1C1A12 | 0.021 |
| Deuteranopia (no green cones) | #1A1913 | 0.020 |
| Tritanopia (no blue cones) | #0E1C1A | 0.013 |
| Achromatopsia (no color) | #191919 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #101C13
#101C13
oklch(21.2% 0.025 151.7)
- #1F151E
#1F151E
oklch(21.2% 0.023 329.7)
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 #101C13, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.047
- Rich Navy #001219 ΔE 0.054
- Jet #212529 ΔE 0.057
- Almost Black #070D0D ΔE 0.062
- Dark #1B2431 ΔE 0.062
- Dark Brown #341C02 ΔE 0.072
- Dark Forest Green #002D04 ΔE 0.075
- Very Dark Green #062E03 ΔE 0.078
Use #101C13 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.