#1F4B84
Closest named color: Light Navy (#155084). oklch(41.3% 0.107 256.2), rgb(31, 75, 132).
Aa
White text reads best on this color (8.75:1).
About this color
#1F4B84 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, 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 0.015 away. White text reads best on it, at 8.75:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.39:1 |
| White text | 8.75:1 |
Values
| HEX | #1F4B84 |
| RGB | rgb(31, 75, 132) |
| HSL | hsl(214, 62%, 32%) |
| OKLCH | oklch(41.3% 0.107 256.2) |
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 #1F4B84 | 8.75:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #1F4B84 | 2.39:1 | Fails | Lc 14.3 | Not readable |
| #1F4B84 text on white | 8.75:1 | AAA | Lc 89.7 | Fine for body text |
| #1F4B84 text on black | 2.39:1 | Fails | Lc -12.6 | 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
#CBDBF0
oklch(88.6% 0.034 255.2)
-
Step 300
300
#A7C3E9
oklch(80.9% 0.062 256.1)
-
Step 400
400
#77A3DE
oklch(70.7% 0.099 256)
-
Step 500
500
#538BD5
oklch(63.2% 0.127 256)
-
Step 600
600
#3673C3
oklch(55.6% 0.14 256.3)
-
Step 700
700
#2860A8
oklch(49% 0.129 256.1)
-
Step 800
800 (this color)
#1F4B84
oklch(41.3% 0.107 256.2)
-
Step 900
900
#22426D
oklch(37.7% 0.083 256.4)
-
Step 950
950
#142740
oklch(27% 0.053 255.8)
#1F4B84 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) | #2F5086 | 0.023 |
| Deuteranopia (no green cones) | #1E4683 | 0.015 |
| Tritanopia (no blue cones) | #005861 | 0.082 |
| Achromatopsia (no color) | #4B4B4B | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F4B84
#1F4B84
oklch(41.3% 0.107 256.2)
- #664400
#664400
oklch(41.5% 0.087 76.5)
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 #1F4B84, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.015
- Cobalt #1E488F ΔE 0.021
- Dusk Blue #26538D ΔE 0.028
- Deep Sea Blue #015482 ΔE 0.029
- Twilight Blue #0A437A ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.049
- Denim Blue #3B5B92 ΔE 0.061
- Blueberry #464196 ΔE 0.062
Use #1F4B84 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.