#175697
Closest named color: Dusk Blue (#26538D). oklch(45% 0.123 253.1), rgb(23, 86, 151).
Aa
White text reads best on this color (7.46:1).
About this color
#175697 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.123 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.018 away. White text reads best on it, at 7.46:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.81:1 |
| White text | 7.46:1 |
Values
| HEX | #175697 |
| RGB | rgb(23, 86, 151) |
| HSL | hsl(210, 74%, 34%) |
| OKLCH | oklch(45% 0.123 253.1) |
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 #175697 | 7.46:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #175697 | 2.81:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #175697 text on white | 7.46:1 | AAA | Lc 85.5 | Fine for body text |
| #175697 text on black | 2.81:1 | Fails | Lc -16.5 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C7DBF4
oklch(88.4% 0.041 254)
-
Step 300
300
#A0C4EF
oklch(80.9% 0.072 253.1)
-
Step 400
400
#6BA4E6
oklch(70.7% 0.114 253)
-
Step 500
500
#408CDF
oklch(63.2% 0.146 252.9)
-
Step 600
600
#1974CD
oklch(55.7% 0.159 253)
-
Step 700
700
#0761B1
oklch(49.2% 0.147 252.8)
-
Step 800
800 (this color)
#175697
oklch(45% 0.123 253.1)
-
Step 900
900
#154273
oklch(37.6% 0.097 253.4)
-
Step 950
950
#0E2743
oklch(26.9% 0.061 253.2)
#175697 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) | #355B9A | 0.031 |
| Deuteranopia (no green cones) | #1E5096 | 0.017 |
| Tritanopia (no blue cones) | #00666F | 0.092 |
| Achromatopsia (no color) | #555555 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175697
#175697
oklch(45% 0.123 253.1)
- #754B00
#754B00
oklch(45% 0.096 72.6)
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 #175697, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.018
- Light Navy #155084 ΔE 0.034
- Light Navy Blue #2E5A88 ΔE 0.034
- Deep Sea Blue #015482 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.037
- Cobalt #1E488F ΔE 0.040
- Peacock Blue #016795 ΔE 0.051
- Dusky Blue #475F94 ΔE 0.056
Use #175697 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.