#1F466B
Closest named color: Dark Grey Blue (#29465B). oklch(38.5% 0.077 249.4), rgb(31, 70, 107).
Aa
White text reads best on this color (9.78:1).
About this color
#1F466B is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.077 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.029 away. White text reads best on it, at 9.78:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.14:1 |
| White text | 9.78:1 |
Values
| HEX | #1F466B |
| RGB | rgb(31, 70, 107) |
| HSL | hsl(209, 55%, 27%) |
| OKLCH | oklch(38.5% 0.077 249.4) |
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 #1F466B | 9.78:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #1F466B | 2.14:1 | Fails | Lc 11.5 | Not readable |
| #1F466B text on white | 9.78:1 | AAA | Lc 92.5 | Preferred for body text |
| #1F466B text on black | 2.14:1 | Fails | Lc -10.0 | 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 900.
-
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
#CADBEE
oklch(88.5% 0.032 251.1)
-
Step 300
300
#A5C4E5
oklch(80.9% 0.058 250.2)
-
Step 400
400
#73A5D8
oklch(70.7% 0.092 249.7)
-
Step 500
500
#4B8ECE
oklch(63.1% 0.119 249.3)
-
Step 600
600
#2B77BB
oklch(55.6% 0.129 249.3)
-
Step 700
700
#1D64A1
oklch(49.2% 0.119 249.1)
-
Step 800
800
#1B5183
oklch(42.6% 0.1 250.1)
-
Step 900
900 (this color)
#1F466B
oklch(38.5% 0.077 249.4)
-
Step 950
950
#12283D
oklch(27% 0.048 249)
#1F466B 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) | #36486D | 0.028 |
| Deuteranopia (no green cones) | #2B406A | 0.021 |
| Tritanopia (no blue cones) | #004F53 | 0.060 |
| Achromatopsia (no color) | #444444 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F466B
#1F466B
oklch(38.5% 0.077 249.4)
- #5E3B0A
#5E3B0A
oklch(38.5% 0.078 69.2)
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 #1F466B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.029
- Twilight Blue #0A437A ΔE 0.032
- Charcoal #264653 ΔE 0.042
- Light Navy #155084 ΔE 0.047
- Deep Sea Blue #015482 ΔE 0.051
- Marine Blue #01386A ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.059
Use #1F466B 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.