#174E6B
Closest named color: Dark Grey Blue (#29465B). oklch(40.3% 0.074 236.2), rgb(23, 78, 107).
Aa
White text reads best on this color (8.98:1).
About this color
#174E6B is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.074 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.033 away. White text reads best on it, at 8.98:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.33:1 |
| White text | 8.98:1 |
Values
| HEX | #174E6B |
| RGB | rgb(23, 78, 107) |
| HSL | hsl(201, 65%, 25%) |
| OKLCH | oklch(40.3% 0.074 236.2) |
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 #174E6B | 8.98:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #174E6B | 2.33:1 | Fails | Lc 13.6 | Not readable |
| #174E6B text on white | 8.98:1 | AAA | Lc 90.3 | Preferred for body text |
| #174E6B text on black | 2.33:1 | Fails | Lc -12.0 | 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 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
#CBDCE7
oklch(88.5% 0.024 236)
-
Step 300
300
#A7C6D9
oklch(81% 0.043 235)
-
Step 400
400
#76A8C6
oklch(70.7% 0.069 235.4)
-
Step 500
500
#5092B8
oklch(63.2% 0.088 235.8)
-
Step 600
600
#317BA4
oklch(55.5% 0.096 236.6)
-
Step 700
700
#22688D
oklch(49.2% 0.09 236.2)
-
Step 800
800 (this color)
#174E6B
oklch(40.3% 0.074 236.2)
-
Step 900
900
#20465C
oklch(37.7% 0.057 236.4)
-
Step 950
950
#132936
oklch(26.9% 0.037 236.3)
#174E6B 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) | #404E6C | 0.044 |
| Deuteranopia (no green cones) | #35466B | 0.036 |
| Tritanopia (no blue cones) | #005558 | 0.046 |
| Achromatopsia (no color) | #494949 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174E6B
#174E6B
oklch(40.3% 0.074 236.2)
- #663D1D
#663D1D
oklch(40.2% 0.074 56.5)
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 #174E6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.033
- Deep Sea Blue #015482 ΔE 0.039
- Light Navy #155084 ΔE 0.042
- Charcoal #264653 ΔE 0.042
- Deep Teal #00555A ΔE 0.043
- Twilight Blue #0A437A ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.052
- Dark Teal #014D4E ΔE 0.053
Use #174E6B 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.