#3E477F
Closest named color: Dark Slate Blue (#483D8B). oklch(41.8% 0.094 274.7), rgb(62, 71, 127).
Aa
White text reads best on this color (8.70:1).
About this color
#3E477F is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.094 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.038 away. White text reads best on it, at 8.70:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.41:1 |
| White text | 8.70:1 |
Values
| HEX | #3E477F |
| RGB | rgb(62, 71, 127) |
| HSL | hsl(232, 34%, 37%) |
| OKLCH | oklch(41.8% 0.094 274.7) |
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 #3E477F | 8.70:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #3E477F | 2.41:1 | Fails | Lc 14.3 | Not readable |
| #3E477F text on white | 8.70:1 | AAA | Lc 89.7 | Fine for body text |
| #3E477F text on black | 2.41:1 | Fails | Lc -12.5 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D3D8EE
oklch(88.5% 0.031 275.6)
-
Step 300
300
#B6BFE5
oklch(81% 0.055 274.7)
-
Step 400
400
#909DD7
oklch(70.8% 0.086 274.3)
-
Step 500
500
#7683CD
oklch(63.1% 0.112 275.1)
-
Step 600
600
#5F6CBA
oklch(55.7% 0.122 274.6)
-
Step 700
700
#4E5AA0
oklch(49.2% 0.112 274.2)
-
Step 800
800 (this color)
#3E477F
oklch(41.8% 0.094 274.7)
-
Step 900
900
#363E68
oklch(37.7% 0.073 274.2)
-
Step 950
950
#20243D
oklch(26.9% 0.047 275.9)
#3E477F 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) | #314E81 | 0.024 |
| Deuteranopia (no green cones) | #2A497E | 0.025 |
| Tritanopia (no blue cones) | #24535D | 0.082 |
| Achromatopsia (no color) | #4B4B4B | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E477F
#3E477F
oklch(41.8% 0.094 274.7)
- #5C4B00
#5C4B00
oklch(41.8% 0.086 94)
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 #3E477F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.038
- Twilight #4E518B ΔE 0.042
- Dusk Blue #26538D ΔE 0.043
- Cobalt #1E488F ΔE 0.043
- Light Navy #155084 ΔE 0.044
- Blueberry #464196 ΔE 0.045
- Dusk #4E5481 ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.055
Use #3E477F 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.