#17506A
Closest named color: Dark Grey Blue (#29465B). oklch(40.8% 0.072 232.5), rgb(23, 80, 106).
Aa
White text reads best on this color (8.77:1).
About this color
#17506A is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.072 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.036 away. White text reads best on it, at 8.77:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.39:1 |
| White text | 8.77:1 |
Values
| HEX | #17506A |
| RGB | rgb(23, 80, 106) |
| HSL | hsl(199, 64%, 25%) |
| OKLCH | oklch(40.8% 0.072 232.5) |
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 #17506A | 8.77:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #17506A | 2.39:1 | Fails | Lc 14.2 | Not readable |
| #17506A text on white | 8.77:1 | AAA | Lc 89.8 | Fine for body text |
| #17506A text on black | 2.39:1 | Fails | Lc -12.5 | 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 800.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300
#A7C6D8
oklch(81% 0.042 233.5)
-
Step 400
400
#75A8C4
oklch(70.6% 0.068 233)
-
Step 500
500
#4F93B5
oklch(63.2% 0.086 232.1)
-
Step 600
600
#2F7CA1
oklch(55.5% 0.094 233)
-
Step 700
700
#20698A
oklch(49.2% 0.087 232.4)
-
Step 800
800 (this color)
#17506A
oklch(40.8% 0.072 232.5)
-
Step 900
900
#1F475A
oklch(37.8% 0.055 231.4)
-
Step 950
950
#132935
oklch(26.9% 0.036 234.1)
#17506A 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) | #434F6B | 0.047 |
| Deuteranopia (no green cones) | #38476A | 0.040 |
| Tritanopia (no blue cones) | #005759 | 0.043 |
| Achromatopsia (no color) | #4B4B4B | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17506A
#17506A
oklch(40.8% 0.072 232.5)
- #683E22
#683E22
oklch(40.8% 0.072 53)
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 #17506A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.036
- Deep Teal #00555A ΔE 0.038
- Deep Sea Blue #015482 ΔE 0.039
- Charcoal #264653 ΔE 0.043
- Light Navy #155084 ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.048
- Petrol #005F6A ΔE 0.048
- Dark Teal #014D4E ΔE 0.050
Use #17506A 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.