#1E5689
Closest named color: Dusk Blue (#26538D). oklch(44.3% 0.102 249.6), rgb(30, 86, 137).
Aa
White text reads best on this color (7.64:1).
About this color
#1E5689 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.102 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.013 away. White text reads best on it, at 7.64:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.74:1 |
| White text | 7.64:1 |
Values
| HEX | #1E5689 |
| RGB | rgb(30, 86, 137) |
| HSL | hsl(209, 64%, 33%) |
| OKLCH | oklch(44.3% 0.102 249.6) |
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 #1E5689 | 7.64:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #1E5689 | 2.74:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #1E5689 text on white | 7.64:1 | AAA | Lc 86.2 | Fine for body text |
| #1E5689 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DBEF
oklch(88.4% 0.034 251)
-
Step 300
300
#A4C4E6
oklch(80.8% 0.059 250.1)
-
Step 400
400
#71A5DA
oklch(70.6% 0.096 249.8)
-
Step 500
500
#498ED0
oklch(63.1% 0.122 249.4)
-
Step 600
600
#2877BD
oklch(55.7% 0.132 249.4)
-
Step 700
700
#1A63A3
oklch(49% 0.124 249.9)
-
Step 800
800 (this color)
#1E5689
oklch(44.3% 0.102 249.6)
-
Step 900
900
#1B446A
oklch(37.7% 0.08 249.3)
-
Step 950
950
#11283E
oklch(27% 0.05 249.3)
#1E5689 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) | #3E598B | 0.034 |
| Deuteranopia (no green cones) | #2E4F88 | 0.022 |
| Tritanopia (no blue cones) | #006269 | 0.074 |
| Achromatopsia (no color) | #535353 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E5689
#1E5689
oklch(44.3% 0.102 249.6)
- #754800
#754800
oklch(44.3% 0.096 69.4)
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 #1E5689, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.013
- Light Navy Blue #2E5A88 ΔE 0.020
- Deep Sea Blue #015482 ΔE 0.020
- Light Navy #155084 ΔE 0.021
- Denim Blue #3B5B92 ΔE 0.036
- Cobalt #1E488F ΔE 0.044
- YInMn Blue #415A77 ΔE 0.049
- Peacock Blue #016795 ΔE 0.050
Use #1E5689 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.