#2F5175
Closest named color: Light Navy (#155084). oklch(42.6% 0.072 251.1), rgb(47, 81, 117).
Aa
White text reads best on this color (8.22:1).
About this color
#2F5175 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.072 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.033 away. White text reads best on it, at 8.22:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.55:1 |
| White text | 8.22:1 |
Values
| HEX | #2F5175 |
| RGB | rgb(47, 81, 117) |
| HSL | hsl(211, 43%, 32%) |
| OKLCH | oklch(42.6% 0.072 251.1) |
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 #2F5175 | 8.22:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #2F5175 | 2.55:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #2F5175 text on white | 8.22:1 | AAA | Lc 88.3 | Fine for body text |
| #2F5175 text on black | 2.55:1 | Fails | Lc -13.9 | 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 800.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDBE9
oklch(88.6% 0.024 250.1)
-
Step 300
300
#ADC3DC
oklch(80.9% 0.043 251.7)
-
Step 400
400
#81A4CA
oklch(70.7% 0.068 250.9)
-
Step 500
500
#618DBC
oklch(63.1% 0.086 250.9)
-
Step 600
600
#4777A8
oklch(55.7% 0.093 250.3)
-
Step 700
700
#396391
oklch(49% 0.088 252)
-
Step 800
800 (this color)
#2F5175
oklch(42.6% 0.072 251.1)
-
Step 900
900
#2A435F
oklch(37.6% 0.057 252.1)
-
Step 950
950
#192837
oklch(27.1% 0.035 249.2)
#2F5175 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) | #425377 | 0.025 |
| Deuteranopia (no green cones) | #394C74 | 0.018 |
| Tritanopia (no blue cones) | #00595E | 0.061 |
| Achromatopsia (no color) | #4F4F4F | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F5175
#2F5175
oklch(42.6% 0.072 251.1)
- #67471D
#67471D
oklch(42.5% 0.072 70.9)
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 #2F5175, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.033
- Deep Sea Blue #015482 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.037
- YInMn Blue #415A77 ΔE 0.037
- Dusk Blue #26538D ΔE 0.039
- Dusk #4E5481 ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.051
- Dusty Grape #545775 ΔE 0.055
Use #2F5175 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.