#175C8E
Closest named color: Light Navy Blue (#2E5A88). oklch(45.9% 0.105 245.5), rgb(23, 92, 142).
Aa
White text reads best on this color (7.09:1).
About this color
#175C8E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.105 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.018 away. White text reads best on it, at 7.09:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.95:1 |
| White text | 7.09:1 |
Values
| HEX | #175C8E |
| RGB | rgb(23, 92, 142) |
| HSL | hsl(205, 72%, 32%) |
| OKLCH | oklch(45.9% 0.105 245.5) |
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 #175C8E | 7.09:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #175C8E | 2.95:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #175C8E text on white | 7.09:1 | AAA | Lc 84.2 | Fine for body text |
| #175C8E text on black | 2.95:1 | Fails | Lc -17.8 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CBDCEB
oklch(88.6% 0.028 244.7)
-
Step 300
300
#A6C5E0
oklch(81% 0.051 244.8)
-
Step 400
400
#76A6D0
oklch(70.7% 0.08 245.7)
-
Step 500
500
#508FC4
oklch(63% 0.103 245.8)
-
Step 600
600
#3179B1
oklch(55.7% 0.113 245.4)
-
Step 700
700 (this color)
#175C8E
oklch(45.9% 0.105 245.5)
-
Step 800
800
#1F537B
oklch(42.7% 0.086 245.2)
-
Step 900
900
#1F4563
oklch(37.8% 0.067 244.8)
-
Step 950
950
#13283A
oklch(26.9% 0.043 246.2)
#175C8E 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) | #445E90 | 0.042 |
| Deuteranopia (no green cones) | #33538D | 0.031 |
| Tritanopia (no blue cones) | #00686E | 0.073 |
| Achromatopsia (no color) | #585858 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175C8E
#175C8E
oklch(45.9% 0.105 245.5)
- #7E4A00
#7E4A00
oklch(46% 0.103 65.6)
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 #175C8E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.018
- Dusk Blue #26538D ΔE 0.026
- Denim Blue #3B5B92 ΔE 0.031
- Deep Sea Blue #015482 ΔE 0.032
- Peacock Blue #016795 ΔE 0.032
- Light Navy #155084 ΔE 0.037
- Denim #3B638C ΔE 0.039
- Dusky Blue #475F94 ΔE 0.048
Use #175C8E 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.