#102017
Closest named color: Jet (#212529). oklch(22.6% 0.028 158.5), rgb(16, 32, 23).
Aa
White text reads best on this color (16.92:1).
About this color
#102017 is a very dark close to neutral grey. In OKLCH its lightness is 23%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.047 away. White text reads best on it, at 16.92:1.
| Hue family | Neutrals |
| Lightness | very dark (23%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.24:1 |
| White text | 16.92:1 |
Values
| HEX | #102017 |
| RGB | rgb(16, 32, 23) |
| HSL | hsl(146, 33%, 9%) |
| OKLCH | oklch(22.6% 0.028 158.5) |
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 #102017 | 16.92:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #102017 | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #102017 text on white | 16.92:1 | AAA | Lc 103.8 | Preferred for body text |
| #102017 text on black | 1.24:1 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE7
oklch(93.6% 0.01 155.1)
-
Step 200
200
#D0DDD5
oklch(88.5% 0.018 159.1)
-
Step 300
300
#AFC8B9
oklch(81% 0.034 159.2)
-
Step 400
400
#85AB94
oklch(70.7% 0.053 158.1)
-
Step 500
500
#65967A
oklch(63% 0.068 158.7)
-
Step 600
600
#4B8163
oklch(55.7% 0.075 158.4)
-
Step 700
700
#3C6D52
oklch(49.2% 0.069 158.4)
-
Step 800
800
#325943
oklch(42.8% 0.058 158)
-
Step 900
900
#2C4939
oklch(37.7% 0.045 159.1)
-
Step 950
950 (this color)
#102017
oklch(22.6% 0.028 158.5)
#102017 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) | #201E17 | 0.027 |
| Deuteranopia (no green cones) | #1D1C18 | 0.026 |
| Tritanopia (no blue cones) | #0D201D | 0.011 |
| Achromatopsia (no color) | #1D1D1D | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102017
#102017
oklch(22.6% 0.028 158.5)
- #251720
#251720
oklch(22.7% 0.028 340.7)
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 #102017, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.047
- Rich Black #0D1B2A ΔE 0.047
- Dark #1B2431 ΔE 0.053
- Dark Forest Green #002D04 ΔE 0.065
- Rich Navy #001219 ΔE 0.065
- Very Dark Green #062E03 ΔE 0.068
- Dark Brown #341C02 ΔE 0.069
- Oxford Blue #1B263B ΔE 0.071
Use #102017 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.