#2D517E
Closest named color: Light Navy (#155084). oklch(43% 0.086 254.9), rgb(45, 81, 126).
Aa
White text reads best on this color (8.10:1).
About this color
#2D517E is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.086 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.022 away. White text reads best on it, at 8.10:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.58:1 |
| White text | 8.10:1 |
Values
| HEX | #2D517E |
| RGB | rgb(45, 81, 126) |
| HSL | hsl(213, 47%, 34%) |
| OKLCH | oklch(43% 0.086 254.9) |
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 #2D517E | 8.10:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #2D517E | 2.58:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #2D517E text on white | 8.10:1 | AAA | Lc 87.9 | Fine for body text |
| #2D517E text on black | 2.58:1 | Fails | Lc -14.3 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CDDAEC
oklch(88.4% 0.029 256.5)
-
Step 300
300
#ABC3E1
oklch(80.9% 0.05 254.1)
-
Step 400
400
#7FA3D2
oklch(70.7% 0.08 255.3)
-
Step 500
500
#5D8CC7
oklch(63.2% 0.103 254.7)
-
Step 600
600
#4375B3
oklch(55.6% 0.111 254.7)
-
Step 700
700
#35629A
oklch(49.1% 0.103 254.9)
-
Step 800
800 (this color)
#2D517E
oklch(43% 0.086 254.9)
-
Step 900
900
#284364
oklch(37.8% 0.066 254.2)
-
Step 950
950
#18273B
oklch(27% 0.043 255.9)
#2D517E 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) | #3E5480 | 0.023 |
| Deuteranopia (no green cones) | #334C7D | 0.015 |
| Tritanopia (no blue cones) | #005B61 | 0.071 |
| Achromatopsia (no color) | #505050 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D517E
#2D517E
oklch(43% 0.086 254.9)
- #6B480A
#6B480A
oklch(43% 0.086 75.1)
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 #2D517E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.022
- Dusk Blue #26538D ΔE 0.025
- Deep Sea Blue #015482 ΔE 0.026
- Light Navy Blue #2E5A88 ΔE 0.029
- YInMn Blue #415A77 ΔE 0.042
- Dusk #4E5481 ΔE 0.045
- Cobalt #1E488F ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.045
Use #2D517E 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.