#17222E
Closest named color: Dark (#1B2431). oklch(24.7% 0.028 251.1), rgb(23, 34, 46).
Aa
White text reads best on this color (16.09:1).
About this color
#17222E is a very dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.011 away. White text reads best on it, at 16.09:1.
| Hue family | Neutrals |
| Lightness | very dark (25%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.30:1 |
| White text | 16.09:1 |
Values
| HEX | #17222E |
| RGB | rgb(23, 34, 46) |
| HSL | hsl(211, 33%, 14%) |
| OKLCH | oklch(24.7% 0.028 251.1) |
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 #17222E | 16.09:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #17222E | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #17222E text on white | 16.09:1 | AAA | Lc 103.0 | Preferred for body text |
| #17222E text on black | 1.30:1 | 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
#E5EAF0
oklch(93.5% 0.01 252.8)
-
Step 200
200
#D1DAE5
oklch(88.5% 0.018 253.4)
-
Step 300
300
#B2C3D6
oklch(81% 0.033 251.2)
-
Step 400
400
#89A3C1
oklch(70.6% 0.053 252.2)
-
Step 500
500
#6B8DB1
oklch(63.2% 0.067 250.3)
-
Step 600
600
#53769D
oklch(55.6% 0.073 251.8)
-
Step 700
700
#436386
oklch(49% 0.068 251.5)
-
Step 800
800
#37516D
oklch(42.6% 0.057 251)
-
Step 900
900
#304358
oklch(37.6% 0.044 251.5)
-
Step 950
950 (this color)
#17222E
oklch(24.7% 0.028 251.1)
#17222E 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) | #1D222F | 0.010 |
| Deuteranopia (no green cones) | #1B202E | 0.009 |
| Tritanopia (no blue cones) | #0F2526 | 0.024 |
| Achromatopsia (no color) | #212121 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17222E
#17222E
oklch(24.7% 0.028 251.1)
- #291F12
#291F12
oklch(24.7% 0.027 73.3)
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 #17222E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.011
- Jet #212529 ΔE 0.023
- Oxford Blue #1B263B ΔE 0.027
- Rich Black #0D1B2A ΔE 0.031
- Space Cadet #2B2D42 ΔE 0.061
- Gunmetal #293241 ΔE 0.068
- Rich Navy #001219 ΔE 0.080
- Dark Brown #341C02 ΔE 0.082
Use #17222E 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.