#17192E
Closest named color: Rich Black (#0D1B2A). oklch(22.3% 0.041 278.4), rgb(23, 25, 46).
Aa
White text reads best on this color (17.28:1).
About this color
#17192E is a very dark, muted blue. In OKLCH its lightness is 22%, its chroma 0.041 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.019 away. White text reads best on it, at 17.28:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.21:1 |
| White text | 17.28:1 |
Values
| HEX | #17192E |
| RGB | rgb(23, 25, 46) |
| HSL | hsl(235, 33%, 14%) |
| OKLCH | oklch(22.3% 0.041 278.4) |
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 #17192E | 17.28:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #17192E | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #17192E text on white | 17.28:1 | AAA | Lc 104.1 | Preferred for body text |
| #17192E text on black | 1.21:1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D5D8EB
oklch(88.6% 0.026 278.7)
-
Step 300
300
#B9BEE0
oklch(80.9% 0.048 278.7)
-
Step 400
400
#959CD1
oklch(70.7% 0.078 278.4)
-
Step 500
500
#7C83C5
oklch(63.1% 0.099 278.5)
-
Step 600
600
#656CB1
oklch(55.6% 0.107 277.9)
-
Step 700
700
#545A98
oklch(49.1% 0.099 277.9)
-
Step 800
800
#45497C
oklch(42.6% 0.084 278.8)
-
Step 900
900
#3A3E63
oklch(37.8% 0.063 278.2)
-
Step 950
950 (this color)
#17192E
oklch(22.3% 0.041 278.4)
#17192E 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) | #121C2F | 0.012 |
| Deuteranopia (no green cones) | #101A2E | 0.012 |
| Tritanopia (no blue cones) | #101D21 | 0.035 |
| Achromatopsia (no color) | #1B1B1B | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17192E
#17192E
oklch(22.3% 0.041 278.4)
- #201B03
#201B03
oklch(22.2% 0.041 98.1)
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 #17192E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.019
- Dark #1B2431 ΔE 0.039
- Oxford Blue #1B263B ΔE 0.048
- Jet #212529 ΔE 0.051
- Rich Navy #001219 ΔE 0.064
- Navy Blue #001146 ΔE 0.065
- Midnight Purple #280137 ΔE 0.073
- Very Dark Purple #2A0134 ΔE 0.074
Use #17192E 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.