#1F4C85
Closest named color: Light Navy (#155084). oklch(41.7% 0.107 255.8), rgb(31, 76, 133).
Aa
White text reads best on this color (8.63:1).
About this color
#1F4C85 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.107 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.013 away. White text reads best on it, at 8.63:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.43:1 |
| White text | 8.63:1 |
Values
| HEX | #1F4C85 |
| RGB | rgb(31, 76, 133) |
| HSL | hsl(214, 62%, 32%) |
| OKLCH | oklch(41.7% 0.107 255.8) |
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 #1F4C85 | 8.63:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #1F4C85 | 2.43:1 | Fails | Lc 14.6 | Not readable |
| #1F4C85 text on white | 8.63:1 | AAA | Lc 89.3 | Fine for body text |
| #1F4C85 text on black | 2.43:1 | Fails | Lc -12.9 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CADBF0
oklch(88.5% 0.034 253.7)
-
Step 300
300
#A6C3E9
oklch(80.9% 0.063 255.3)
-
Step 400
400
#76A3DF
oklch(70.7% 0.101 255.9)
-
Step 500
500
#528BD5
oklch(63.1% 0.127 255.6)
-
Step 600
600
#3573C3
oklch(55.5% 0.14 256)
-
Step 700
700
#2760A8
oklch(49% 0.13 255.9)
-
Step 800
800 (this color)
#1F4C85
oklch(41.7% 0.107 255.8)
-
Step 900
900
#21426D
oklch(37.7% 0.084 255.9)
-
Step 950
950
#142740
oklch(27% 0.053 255.8)
#1F4C85 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) | #305187 | 0.024 |
| Deuteranopia (no green cones) | #1F4784 | 0.015 |
| Tritanopia (no blue cones) | #005962 | 0.081 |
| Achromatopsia (no color) | #4C4C4C | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F4C85
#1F4C85
oklch(41.7% 0.107 255.8)
- #674400
#674400
oklch(41.6% 0.088 75.6)
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 #1F4C85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.013
- Cobalt #1E488F ΔE 0.022
- Dusk Blue #26538D ΔE 0.025
- Deep Sea Blue #015482 ΔE 0.027
- Twilight Blue #0A437A ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.058
- Twilight #4E518B ΔE 0.062
Use #1F4C85 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.