#175D7D
Closest named color: Light Navy Blue (#2E5A88). oklch(45.2% 0.084 233.4), rgb(23, 93, 125).
Aa
White text reads best on this color (7.24:1).
About this color
#175D7D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.084 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.028 away. White text reads best on it, at 7.24:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.89:1 |
| White text | 7.24:1 |
Values
| HEX | #175D7D |
| RGB | rgb(23, 93, 125) |
| HSL | hsl(199, 69%, 29%) |
| OKLCH | oklch(45.2% 0.084 233.4) |
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 #175D7D | 7.24:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #175D7D | 2.89:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #175D7D text on white | 7.24:1 | AAA | Lc 84.8 | Fine for body text |
| #175D7D text on black | 2.89:1 | Fails | Lc -17.2 | 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 800.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE9
oklch(88.6% 0.028 232.7)
-
Step 300
300
#A2C7DC
oklch(81% 0.049 233.1)
-
Step 400
400
#6DA9CA
oklch(70.6% 0.079 233.5)
-
Step 500
500
#4193BD
oklch(63% 0.101 233.9)
-
Step 600
600
#167DA9
oklch(55.6% 0.11 233.5)
-
Step 700
700
#016991
oklch(49.1% 0.102 233.7)
-
Step 800
800 (this color)
#175D7D
oklch(45.2% 0.084 233.4)
-
Step 900
900
#16475F
oklch(37.7% 0.066 233.8)
-
Step 950
950
#0F2A37
oklch(27.1% 0.041 231.9)
#175D7D 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) | #4D5C7F | 0.053 |
| Deuteranopia (no green cones) | #40537C | 0.044 |
| Tritanopia (no blue cones) | #006568 | 0.050 |
| Achromatopsia (no color) | #575757 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175D7D
#175D7D
oklch(45.2% 0.084 233.4)
- #7A4825
#7A4825
oklch(45.3% 0.084 53.8)
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 #175D7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.028
- Deep Sea Blue #015482 ΔE 0.034
- Petrol #005F6A ΔE 0.036
- YInMn Blue #415A77 ΔE 0.037
- Peacock Blue #016795 ΔE 0.043
- Denim #3B638C ΔE 0.044
- Light Navy #155084 ΔE 0.045
- Dusk Blue #26538D ΔE 0.045
Use #175D7D 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.