#2F507D
Closest named color: Light Navy (#155084). oklch(42.8% 0.085 256.5), rgb(47, 80, 125).
Aa
White text reads best on this color (8.18:1).
About this color
#2F507D is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.085 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.023 away. White text reads best on it, at 8.18:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.56:1 |
| White text | 8.18:1 |
Values
| HEX | #2F507D |
| RGB | rgb(47, 80, 125) |
| HSL | hsl(215, 45%, 34%) |
| OKLCH | oklch(42.8% 0.085 256.5) |
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 #2F507D | 8.18:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #2F507D | 2.56:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #2F507D text on white | 8.18:1 | AAA | Lc 88.2 | Fine for body text |
| #2F507D text on black | 2.56:1 | Fails | Lc -14.0 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAEC
oklch(88.5% 0.028 258.4)
-
Step 300
300
#ACC2E1
oklch(80.8% 0.05 257)
-
Step 400
400
#81A3D2
oklch(70.8% 0.079 256.6)
-
Step 500
500
#608BC6
oklch(63% 0.101 256.5)
-
Step 600
600
#4774B3
oklch(55.6% 0.111 257)
-
Step 700
700
#38619A
oklch(49% 0.103 256.9)
-
Step 800
800 (this color)
#2F507D
oklch(42.8% 0.085 256.5)
-
Step 900
900
#2A4264
oklch(37.6% 0.066 257.2)
-
Step 950
950
#19273B
oklch(27% 0.042 257.3)
#2F507D 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) | #3D537F | 0.020 |
| Deuteranopia (no green cones) | #334C7C | 0.012 |
| Tritanopia (no blue cones) | #005A60 | 0.072 |
| Achromatopsia (no color) | #4F4F4F | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F507D
#2F507D
oklch(42.8% 0.085 256.5)
- #69480A
#69480A
oklch(42.8% 0.085 76.8)
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 #2F507D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.023
- Dusk Blue #26538D ΔE 0.027
- Deep Sea Blue #015482 ΔE 0.029
- Light Navy Blue #2E5A88 ΔE 0.032
- YInMn Blue #415A77 ΔE 0.043
- Dusk #4E5481 ΔE 0.044
- Cobalt #1E488F ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.047
Use #2F507D 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.