#1D4D7E
Closest named color: Light Navy (#155084). oklch(41.4% 0.097 251.7), rgb(29, 77, 126).
Aa
White text reads best on this color (8.69:1).
About this color
#1D4D7E is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.097 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.012 away. White text reads best on it, at 8.69:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.41:1 |
| White text | 8.69:1 |
Values
| HEX | #1D4D7E |
| RGB | rgb(29, 77, 126) |
| HSL | hsl(210, 63%, 30%) |
| OKLCH | oklch(41.4% 0.097 251.7) |
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 #1D4D7E | 8.69:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #1D4D7E | 2.41:1 | Fails | Lc 14.5 | Not readable |
| #1D4D7E text on white | 8.69:1 | AAA | Lc 89.5 | Fine for body text |
| #1D4D7E text on black | 2.41:1 | Fails | Lc -12.7 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CBDBEE
oklch(88.5% 0.031 252.7)
-
Step 300
300
#A7C4E5
oklch(81% 0.056 251.8)
-
Step 400
400
#76A4D8
oklch(70.6% 0.091 252.1)
-
Step 500
500
#518DCD
oklch(63.1% 0.116 251.5)
-
Step 600
600
#3476BA
oklch(55.6% 0.125 251.7)
-
Step 700
700
#2663A1
oklch(49.2% 0.117 251.8)
-
Step 800
800 (this color)
#1D4D7E
oklch(41.4% 0.097 251.7)
-
Step 900
900
#214368
oklch(37.6% 0.075 252.2)
-
Step 950
950
#14283D
oklch(27.1% 0.047 251)
#1D4D7E 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) | #365080 | 0.028 |
| Deuteranopia (no green cones) | #28477D | 0.019 |
| Tritanopia (no blue cones) | #00595F | 0.074 |
| Achromatopsia (no color) | #4B4B4B | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D4D7E
#1D4D7E
oklch(41.4% 0.097 251.7)
- #694200
#694200
oklch(41.5% 0.089 71.6)
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 #1D4D7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.012
- Deep Sea Blue #015482 ΔE 0.022
- Dusk Blue #26538D ΔE 0.031
- Cobalt #1E488F ΔE 0.034
- Twilight Blue #0A437A ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.059
- Denim Blue #3B5B92 ΔE 0.062
Use #1D4D7E 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.