#1A4080
Closest named color: Twilight Blue (#0A437A). oklch(38.3% 0.117 260.2), rgb(26, 64, 128).
Aa
White text reads best on this color (10.05:1).
About this color
#1A4080 is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.117 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.017 away. White text reads best on it, at 10.05:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #1A4080 |
| RGB | rgb(26, 64, 128) |
| HSL | hsl(218, 66%, 30%) |
| OKLCH | oklch(38.3% 0.117 260.2) |
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 #1A4080 | 10.05:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #1A4080 | 2.08:1 | Fails | Lc 11.0 | Not readable |
| #1A4080 text on white | 10.05:1 | AAA | Lc 92.9 | Preferred for body text |
| #1A4080 text on black | 2.08:1 | Fails | Lc -9.5 | 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 900.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C7DAFA
oklch(88.4% 0.049 260.9)
-
Step 300
300
#A0C2FA
oklch(80.9% 0.088 260.2)
-
Step 400
400
#6CA0F7
oklch(70.7% 0.14 260.2)
-
Step 500
500
#4485F4
oklch(63.1% 0.179 260.4)
-
Step 600
600
#246CE2
oklch(55.7% 0.193 260.1)
-
Step 700
700
#1659C5
oklch(49.1% 0.181 260.2)
-
Step 800
800
#15499F
oklch(42.6% 0.15 260.2)
-
Step 900
900 (this color)
#1A4080
oklch(38.3% 0.117 260.2)
-
Step 950
950
#0F254A
oklch(27% 0.074 260.2)
#1A4080 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) | #1C4782 | 0.021 |
| Deuteranopia (no green cones) | #003E7F | 0.017 |
| Tritanopia (no blue cones) | #004F5A | 0.090 |
| Achromatopsia (no color) | #424242 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A4080
#1A4080
oklch(38.3% 0.117 260.2)
- #593D00
#593D00
oklch(38.2% 0.079 79.4)
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 #1A4080, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.017
- Cobalt #1E488F ΔE 0.033
- Light Navy #155084 ΔE 0.046
- Marine Blue #01386A ΔE 0.048
- Deep Sea Blue #015482 ΔE 0.058
- Dusk Blue #26538D ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.063
- Blueberry #464196 ΔE 0.068
Use #1A4080 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.