#2D4E7F
Closest named color: Light Navy (#155084). oklch(42.4% 0.091 258.1), rgb(45, 78, 127).
Aa
White text reads best on this color (8.37:1).
About this color
#2D4E7F is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.091 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.020 away. White text reads best on it, at 8.37:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.50:1 |
| White text | 8.37:1 |
Values
| HEX | #2D4E7F |
| RGB | rgb(45, 78, 127) |
| HSL | hsl(216, 48%, 34%) |
| OKLCH | oklch(42.4% 0.091 258.1) |
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 #2D4E7F | 8.37:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #2D4E7F | 2.50:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #2D4E7F text on white | 8.37:1 | AAA | Lc 88.7 | Fine for body text |
| #2D4E7F text on black | 2.50:1 | Fails | Lc -13.5 | 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
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CDDAED
oklch(88.4% 0.03 257.8)
-
Step 300
300
#ACC2E3
oklch(80.8% 0.053 258.4)
-
Step 400
400
#80A2D6
oklch(70.7% 0.085 258.7)
-
Step 500
500
#5F8ACB
oklch(63% 0.11 258.4)
-
Step 600
600
#4573B7
oklch(55.5% 0.118 258)
-
Step 700
700
#37609E
oklch(49% 0.11 258.5)
-
Step 800
800 (this color)
#2D4E7F
oklch(42.4% 0.091 258.1)
-
Step 900
900
#294267
oklch(37.7% 0.071 258)
-
Step 950
950
#18273C
oklch(27% 0.044 256.9)
#2D4E7F 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) | #395281 | 0.020 |
| Deuteranopia (no green cones) | #2E4A7E | 0.012 |
| Tritanopia (no blue cones) | #005960 | 0.076 |
| Achromatopsia (no color) | #4E4E4E | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D4E7F
#2D4E7F
oklch(42.4% 0.091 258.1)
- #684700
#684700
oklch(42.4% 0.088 78.4)
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 #2D4E7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.020
- Dusk Blue #26538D ΔE 0.025
- Deep Sea Blue #015482 ΔE 0.029
- Light Navy Blue #2E5A88 ΔE 0.036
- Cobalt #1E488F ΔE 0.038
- Twilight Blue #0A437A ΔE 0.047
- Dusk #4E5481 ΔE 0.049
- Twilight #4E518B ΔE 0.050
Use #2D4E7F 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.