#1E478C
Closest named color: Cobalt (#1E488F). oklch(40.9% 0.124 260.2), rgb(30, 71, 140).
Aa
White text reads best on this color (8.99:1).
About this color
#1E478C is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.124 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.005 away. White text reads best on it, at 8.99:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.33:1 |
| White text | 8.99:1 |
Values
| HEX | #1E478C |
| RGB | rgb(30, 71, 140) |
| HSL | hsl(218, 65%, 33%) |
| OKLCH | oklch(40.9% 0.124 260.2) |
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 #1E478C | 8.99:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #1E478C | 2.33:1 | Fails | Lc 13.7 | Not readable |
| #1E478C text on white | 8.99:1 | AAA | Lc 90.3 | Preferred for body text |
| #1E478C text on black | 2.33:1 | Fails | Lc -12.0 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF8
oklch(93.5% 0.021 261.8)
-
Step 200
200
#CADAF4
oklch(88.4% 0.04 260.1)
-
Step 300
300
#A6C2F0
oklch(80.9% 0.072 260.3)
-
Step 400
400
#76A1E9
oklch(70.8% 0.116 260.3)
-
Step 500
500
#5288E2
oklch(63.2% 0.148 260.1)
-
Step 600
600
#366FD0
oklch(55.5% 0.162 260.3)
-
Step 700
700
#295DB4
oklch(49.2% 0.149 260.1)
-
Step 800
800 (this color)
#1E478C
oklch(40.9% 0.124 260.2)
-
Step 900
900
#214074
oklch(37.7% 0.097 260.1)
-
Step 950
950
#142644
oklch(27% 0.061 260.1)
#1E478C 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) | #204E8F | 0.021 |
| Deuteranopia (no green cones) | #00448B | 0.020 |
| Tritanopia (no blue cones) | #005762 | 0.096 |
| Achromatopsia (no color) | #494949 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E478C
#1E478C
oklch(40.9% 0.124 260.2)
- #624400
#624400
oklch(40.9% 0.085 80)
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 #1E478C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.005
- Light Navy #155084 ΔE 0.031
- Twilight Blue #0A437A ΔE 0.036
- Dusk Blue #26538D ΔE 0.037
- Deep Sea Blue #015482 ΔE 0.045
- Blueberry #464196 ΔE 0.053
- Dark Slate Blue #483D8B ΔE 0.056
- Light Navy Blue #2E5A88 ΔE 0.062
Use #1E478C 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.