#1E5783
Closest named color: Deep Sea Blue (#015482). oklch(44.2% 0.093 245.7), rgb(30, 87, 131).
Aa
White text reads best on this color (7.64:1).
About this color
#1E5783 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.093 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.018 away. White text reads best on it, at 7.64:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.74:1 |
| White text | 7.64:1 |
Values
| HEX | #1E5783 |
| RGB | rgb(30, 87, 131) |
| HSL | hsl(206, 63%, 32%) |
| OKLCH | oklch(44.2% 0.093 245.7) |
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 #1E5783 | 7.64:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #1E5783 | 2.74:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #1E5783 text on white | 7.64:1 | AAA | Lc 86.3 | Fine for body text |
| #1E5783 text on black | 2.74:1 | Fails | Lc -15.8 | Dividers and decoration only |
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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#C9DCEC
oklch(88.5% 0.03 243.4)
-
Step 300
300
#A4C5E2
oklch(80.9% 0.054 245.1)
-
Step 400
400
#72A6D4
oklch(70.6% 0.087 246.1)
-
Step 500
500
#4A8FC8
oklch(63% 0.111 245.8)
-
Step 600
600
#2979B5
oklch(55.7% 0.12 245.4)
-
Step 700
700
#1A659C
oklch(49.1% 0.113 245.8)
-
Step 800
800 (this color)
#1E5783
oklch(44.2% 0.093 245.7)
-
Step 900
900
#1C4566
oklch(37.8% 0.073 245.8)
-
Step 950
950
#11283B
oklch(26.8% 0.046 245.6)
#1E5783 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) | #435985 | 0.039 |
| Deuteranopia (no green cones) | #354F82 | 0.029 |
| Tritanopia (no blue cones) | #006267 | 0.067 |
| Achromatopsia (no color) | #535353 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E5783
#1E5783
oklch(44.2% 0.093 245.7)
- #75470B
#75470B
oklch(44.2% 0.093 66.2)
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 #1E5783, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.018
- Light Navy Blue #2E5A88 ΔE 0.019
- Dusk Blue #26538D ΔE 0.023
- Light Navy #155084 ΔE 0.024
- Denim Blue #3B5B92 ΔE 0.040
- YInMn Blue #415A77 ΔE 0.042
- Denim #3B638C ΔE 0.049
- Peacock Blue #016795 ΔE 0.050
Use #1E5783 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.