#1E5580
Closest named color: Deep Sea Blue (#015482). oklch(43.5% 0.091 245.9), rgb(30, 85, 128).
Aa
White text reads best on this color (7.87:1).
About this color
#1E5580 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.091 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.014 away. White text reads best on it, at 7.87:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.66:1 |
| White text | 7.87:1 |
Values
| HEX | #1E5580 |
| RGB | rgb(30, 85, 128) |
| HSL | hsl(206, 62%, 31%) |
| OKLCH | oklch(43.5% 0.091 245.9) |
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 #1E5580 | 7.87:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #1E5580 | 2.66:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #1E5580 text on white | 7.87:1 | AAA | Lc 87.0 | Fine for body text |
| #1E5580 text on black | 2.66:1 | Fails | Lc -15.1 | 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
#CADCEC
oklch(88.6% 0.029 244.9)
-
Step 300
300
#A5C5E2
oklch(81% 0.054 245.9)
-
Step 400
400
#73A6D3
oklch(70.7% 0.086 246)
-
Step 500
500
#4C8FC7
oklch(63% 0.109 245.9)
-
Step 600
600
#2C78B4
oklch(55.5% 0.119 246.3)
-
Step 700
700
#1E659B
oklch(49.1% 0.11 246.1)
-
Step 800
800 (this color)
#1E5580
oklch(43.5% 0.091 245.9)
-
Step 900
900
#1D4565
oklch(37.8% 0.071 245.5)
-
Step 950
950
#12283B
oklch(26.9% 0.045 246.6)
#1E5580 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) | #415782 | 0.037 |
| Deuteranopia (no green cones) | #344D7F | 0.029 |
| Tritanopia (no blue cones) | #005F64 | 0.065 |
| Achromatopsia (no color) | #515151 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E5580
#1E5580
oklch(43.5% 0.091 245.9)
- #73450B
#73450B
oklch(43.5% 0.092 65.3)
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 #1E5580, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.014
- Light Navy #155084 ΔE 0.020
- Dusk Blue #26538D ΔE 0.025
- Light Navy Blue #2E5A88 ΔE 0.025
- YInMn Blue #415A77 ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.046
- Cobalt #1E488F ΔE 0.049
- Dusk #4E5481 ΔE 0.054
Use #1E5580 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.