#17192D
Closest named color: Rich Black (#0D1B2A). oklch(22.2% 0.039 278.4), rgb(23, 25, 45).
Aa
White text reads best on this color (17.30:1).
About this color
#17192D is a very dark, muted blue. In OKLCH its lightness is 22%, its chroma 0.039 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.018 away. White text reads best on it, at 17.30:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.21:1 |
| White text | 17.30:1 |
Values
| HEX | #17192D |
| RGB | rgb(23, 25, 45) |
| HSL | hsl(235, 32%, 13%) |
| OKLCH | oklch(22.2% 0.039 278.4) |
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 #17192D | 17.30:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #17192D | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #17192D text on white | 17.30:1 | AAA | Lc 104.1 | Preferred for body text |
| #17192D 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
#D5D8EA
oklch(88.5% 0.025 278.3)
-
Step 300
300
#B9BEDF
oklch(80.8% 0.047 278.5)
-
Step 400
400
#969CCF
oklch(70.7% 0.075 279.1)
-
Step 500
500
#7C83C2
oklch(63% 0.095 278.4)
-
Step 600
600
#666CAF
oklch(55.6% 0.104 278.6)
-
Step 700
700
#555A96
oklch(49.1% 0.096 278.6)
-
Step 800
800
#454A7A
oklch(42.7% 0.079 277.9)
-
Step 900
900
#3A3E62
oklch(37.7% 0.062 278.2)
-
Step 950
950 (this color)
#17192D
oklch(22.2% 0.039 278.4)
#17192D 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) | #121B2E | 0.010 |
| Deuteranopia (no green cones) | #111A2D | 0.010 |
| Tritanopia (no blue cones) | #101D20 | 0.035 |
| Achromatopsia (no color) | #1B1B1B | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17192D
#17192D
oklch(22.2% 0.039 278.4)
- #201B04
#201B04
oklch(22.2% 0.039 97.5)
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 #17192D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.018
- Dark #1B2431 ΔE 0.039
- Oxford Blue #1B263B ΔE 0.048
- Jet #212529 ΔE 0.051
- Rich Navy #001219 ΔE 0.063
- Navy Blue #001146 ΔE 0.067
- Midnight Purple #280137 ΔE 0.074
- Very Dark Purple #2A0134 ΔE 0.074
Use #17192D 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.