#10170E
Closest named color: Rich Navy (#001219). oklch(19.4% 0.021 138.8), rgb(16, 23, 14).
Aa
White text reads best on this color (18.24:1).
About this color
#10170E is a very dark close to neutral grey. In OKLCH its lightness is 19%, its chroma 0.021. 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 18.24:1.
| Hue family | Neutrals |
| Lightness | very dark (19%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.15:1 |
| White text | 18.24:1 |
Values
| HEX | #10170E |
| RGB | rgb(16, 23, 14) |
| HSL | hsl(107, 24%, 7%) |
| OKLCH | oklch(19.4% 0.021 138.8) |
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 #10170E | 18.24:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #10170E | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #10170E text on white | 18.24:1 | AAA | Lc 104.9 | Preferred for body text |
| #10170E text on black | 1.15:1 | 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
#E7EBE6
oklch(93.6% 0.008 139.4)
-
Step 200
200
#D5DBD3
oklch(88.5% 0.013 137.8)
-
Step 300
300
#B9C5B6
oklch(81% 0.025 139.4)
-
Step 400
400
#95A790
oklch(70.8% 0.039 138.9)
-
Step 500
500
#7A9174
oklch(63% 0.05 139.2)
-
Step 600
600
#637B5D
oklch(55.5% 0.053 139.4)
-
Step 700
700
#52684C
oklch(49.1% 0.051 139)
-
Step 800
800
#43553F
oklch(42.8% 0.042 140)
-
Step 900
900
#394635
oklch(37.7% 0.033 138.4)
-
Step 950
950 (this color)
#10170E
oklch(19.4% 0.021 138.8)
#10170E 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) | #18160D | 0.015 |
| Deuteranopia (no green cones) | #16150E | 0.013 |
| Tritanopia (no blue cones) | #101615 | 0.016 |
| Achromatopsia (no color) | #151515 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #10170E
#10170E
oklch(19.4% 0.021 138.8)
- #19121B
#19121B
oklch(19.5% 0.021 318.6)
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 #10170E, 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 0.045
- Rich Black #0D1B2A ΔE 0.053
- Jet #212529 ΔE 0.073
- Very Dark Brown #1D0200 ΔE 0.076
- Dark #1B2431 ΔE 0.076
- Dark Brown #341C02 ΔE 0.079
- Dark Forest Green #002D04 ΔE 0.089
Use #10170E 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.