#1E4198
Closest named color: Cobalt (#1E488F). oklch(40.6% 0.148 264.2), rgb(30, 65, 152).
Aa
White text reads best on this color (9.27:1).
About this color
#1E4198 is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.148 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.025 away. White text reads best on it, at 9.27:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.26:1 |
| White text | 9.27:1 |
Values
| HEX | #1E4198 |
| RGB | rgb(30, 65, 152) |
| HSL | hsl(223, 67%, 36%) |
| OKLCH | oklch(40.6% 0.148 264.2) |
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 #1E4198 | 9.27:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #1E4198 | 2.26:1 | Fails | Lc 13.1 | Not readable |
| #1E4198 text on white | 9.27:1 | AAA | Lc 90.9 | Preferred for body text |
| #1E4198 text on black | 2.26:1 | Fails | Lc -11.5 | 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 800.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C9DAFA
oklch(88.6% 0.048 263.1)
-
Step 300
300
#A4C0FA
oklch(80.8% 0.088 264.5)
-
Step 400
400
#749EF7
oklch(70.7% 0.139 264)
-
Step 500
500
#5182F3
oklch(63% 0.178 264.3)
-
Step 600
600
#3769E2
oklch(55.6% 0.192 264.1)
-
Step 700
700
#2A56C4
oklch(49% 0.179 264.3)
-
Step 800
800 (this color)
#1E4198
oklch(40.6% 0.148 264.2)
-
Step 900
900
#213D7E
oklch(37.7% 0.115 264.1)
-
Step 950
950
#14244A
oklch(27% 0.074 264.7)
#1E4198 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) | #004D9B | 0.032 |
| Deuteranopia (no green cones) | #004296 | 0.017 |
| Tritanopia (no blue cones) | #005766 | 0.116 |
| Achromatopsia (no color) | #474747 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E4198
#1E4198
oklch(40.6% 0.148 264.2)
- #5E4500
#5E4500
oklch(40.7% 0.083 84.9)
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 #1E4198, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.025
- Sapphire #2138AB ΔE 0.037
- Blueberry #464196 ΔE 0.050
- Twilight Blue #0A437A ΔE 0.053
- Light Navy #155084 ΔE 0.056
- Dusk Blue #26538D ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.057
- Deep Sea Blue #015482 ΔE 0.069
Use #1E4198 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.