#101E1F
Closest named color: Rich Black (#0D1B2A). oklch(22.3% 0.019 201.6), rgb(16, 30, 31).
Aa
White text reads best on this color (17.10:1).
About this color
#101E1F is a very dark close to neutral grey. In OKLCH its lightness is 22%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.028 away. White text reads best on it, at 17.10:1.
| Hue family | Neutrals |
| Lightness | very dark (22%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.10:1 |
Values
| HEX | #101E1F |
| RGB | rgb(16, 30, 31) |
| HSL | hsl(184, 32%, 9%) |
| OKLCH | oklch(22.3% 0.019 201.6) |
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 #101E1F | 17.10:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #101E1F | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #101E1F text on white | 17.10:1 | AAA | Lc 104.0 | Preferred for body text |
| #101E1F text on black | 1.22:1 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D0DCDD
oklch(88.6% 0.013 202.9)
-
Step 300
300
#B0C5C7
oklch(80.8% 0.023 203.7)
-
Step 400
400
#86A8AA
oklch(70.7% 0.037 200.8)
-
Step 500
500
#679295
oklch(63% 0.047 201.5)
-
Step 600
600
#4E7D80
oklch(55.7% 0.051 200.9)
-
Step 700
700
#3E696C
oklch(49.1% 0.048 201.4)
-
Step 800
800
#345658
oklch(42.8% 0.04 200.5)
-
Step 900
900
#2E4748
oklch(37.8% 0.031 199.1)
-
Step 950
950 (this color)
#101E1F
oklch(22.3% 0.019 201.6)
#101E1F 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) | #1C1D1F | 0.020 |
| Deuteranopia (no green cones) | #191B1F | 0.017 |
| Tritanopia (no blue cones) | #0A1F1E | 0.009 |
| Achromatopsia (no color) | #1C1C1C | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #101E1F
#101E1F
oklch(22.3% 0.019 201.6)
- #241817
#241817
oklch(22.4% 0.02 24.2)
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 #101E1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.028
- Jet #212529 ΔE 0.042
- Dark #1B2431 ΔE 0.042
- Rich Navy #001219 ΔE 0.056
- Oxford Blue #1B263B ΔE 0.059
- Almost Black #070D0D ΔE 0.071
- Dark Brown #341C02 ΔE 0.076
- Dark Forest Green #002D04 ΔE 0.082
Use #101E1F 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.