#174064
Closest named color: Marine Blue (#01386A). oklch(36.2% 0.077 248.3), rgb(23, 64, 100).
Aa
White text reads best on this color (10.74:1).
About this color
#174064 is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.077 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.034 away. White text reads best on it, at 10.74:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.95:1 |
| White text | 10.74:1 |
Values
| HEX | #174064 |
| RGB | rgb(23, 64, 100) |
| HSL | hsl(208, 63%, 24%) |
| OKLCH | oklch(36.2% 0.077 248.3) |
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 #174064 | 10.74:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #174064 | 1.95:1 | Fails | Lc 9.3 | Not readable |
| #174064 text on white | 10.74:1 | AAA | Lc 94.7 | Preferred for body text |
| #174064 text on black | 1.95:1 | Fails | Lc -7.9 | 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 900.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DCEE
oklch(88.6% 0.032 246.7)
-
Step 300
300
#A4C5E5
oklch(81% 0.058 247.7)
-
Step 400
400
#71A6D8
oklch(70.8% 0.093 247.8)
-
Step 500
500
#498ECD
oklch(63% 0.118 248.3)
-
Step 600
600
#2877BA
oklch(55.5% 0.129 248.4)
-
Step 700
700
#1964A1
oklch(49.1% 0.12 248.4)
-
Step 800
800
#185282
oklch(42.7% 0.099 248)
-
Step 900
900 (this color)
#174064
oklch(36.2% 0.077 248.3)
-
Step 950
950
#11283D
oklch(26.9% 0.049 248.1)
#174064 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) | #304266 | 0.029 |
| Deuteranopia (no green cones) | #253A63 | 0.021 |
| Tritanopia (no blue cones) | #00494D | 0.058 |
| Achromatopsia (no color) | #3E3E3E | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174064
#174064
oklch(36.2% 0.077 248.3)
- #583503
#583503
oklch(36.3% 0.077 68.4)
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 #174064, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.034
- Dark Grey Blue #29465B ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.037
- Twilight Blue #0A437A ΔE 0.037
- Dark Blue Grey #1F3B4D ΔE 0.040
- Charcoal #264653 ΔE 0.042
- Midnight Green #073B4C ΔE 0.046
- Marine #042E60 ΔE 0.060
Use #174064 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.