#1E5174
Closest named color: Deep Sea Blue (#015482). oklch(41.8% 0.08 242.3), rgb(30, 81, 116).
Aa
White text reads best on this color (8.45:1).
About this color
#1E5174 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.080 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.025 away. White text reads best on it, at 8.45:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.48:1 |
| White text | 8.45:1 |
Values
| HEX | #1E5174 |
| RGB | rgb(30, 81, 116) |
| HSL | hsl(204, 59%, 29%) |
| OKLCH | oklch(41.8% 0.08 242.3) |
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 #1E5174 | 8.45:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #1E5174 | 2.48:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #1E5174 text on white | 8.45:1 | AAA | Lc 88.9 | Fine for body text |
| #1E5174 text on black | 2.48:1 | Fails | Lc -13.3 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CBDCE9
oklch(88.6% 0.026 240.7)
-
Step 300
300
#A7C5DD
oklch(80.9% 0.047 242.4)
-
Step 400
400
#77A7CB
oklch(70.8% 0.074 241.5)
-
Step 500
500
#5290BE
oklch(63.1% 0.095 242.4)
-
Step 600
600
#337AAA
oklch(55.6% 0.103 241.6)
-
Step 700
700
#256692
oklch(49% 0.096 242.3)
-
Step 800
800 (this color)
#1E5174
oklch(41.8% 0.08 242.3)
-
Step 900
900
#214560
oklch(37.7% 0.062 243.2)
-
Step 950
950
#142938
oklch(27.1% 0.039 241.3)
#1E5174 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) | #415276 | 0.039 |
| Deuteranopia (no green cones) | #354973 | 0.031 |
| Tritanopia (no blue cones) | #005A5D | 0.057 |
| Achromatopsia (no color) | #4D4D4D | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E5174
#1E5174
oklch(41.8% 0.08 242.3)
- #6B4218
#6B4218
oklch(41.9% 0.08 62.8)
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 #1E5174, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.025
- Light Navy #155084 ΔE 0.028
- Dusk Blue #26538D ΔE 0.043
- Light Navy Blue #2E5A88 ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.047
- YInMn Blue #415A77 ΔE 0.049
- Twilight Blue #0A437A ΔE 0.050
- Petrol #005F6A ΔE 0.052
Use #1E5174 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.