#101A22
Closest named color: Rich Black (#0D1B2A). oklch(21.2% 0.022 243.1), rgb(16, 26, 34).
Aa
White text reads best on this color (17.60:1).
About this color
#101A22 is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.016 away. White text reads best on it, at 17.60:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.60:1 |
Values
| HEX | #101A22 |
| RGB | rgb(16, 26, 34) |
| HSL | hsl(207, 36%, 10%) |
| OKLCH | oklch(21.2% 0.022 243.1) |
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 #101A22 | 17.60:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #101A22 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #101A22 text on white | 17.60:1 | AAA | Lc 104.4 | Preferred for body text |
| #101A22 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D1DAE2
oklch(88.4% 0.015 244.7)
-
Step 300
300
#B3C3D0
oklch(80.9% 0.025 242.4)
-
Step 400
400
#8BA4B9
oklch(70.7% 0.042 243.7)
-
Step 500
500
#6E8EA7
oklch(63.2% 0.052 242.1)
-
Step 600
600
#567892
oklch(55.7% 0.056 241.9)
-
Step 700
700
#46647D
oklch(49% 0.054 244.3)
-
Step 800
800
#3A5265
oklch(42.7% 0.043 242.8)
-
Step 900
900
#324452
oklch(37.7% 0.033 242.1)
-
Step 950
950 (this color)
#101A22
oklch(21.2% 0.022 243.1)
#101A22 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) | #171A22 | 0.012 |
| Deuteranopia (no green cones) | #141822 | 0.009 |
| Tritanopia (no blue cones) | #091C1D | 0.017 |
| Achromatopsia (no color) | #191919 | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #101A22
#101A22
oklch(21.2% 0.022 243.1)
- #20170E
#20170E
oklch(21.3% 0.022 66.2)
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 #101A22, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.016
- Rich Navy #001219 ΔE 0.045
- Dark #1B2431 ΔE 0.047
- Jet #212529 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.062
- Almost Black #070D0D ΔE 0.062
- Navy Blue #001146 ΔE 0.082
- Dark Brown #341C02 ΔE 0.086
Use #101A22 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.