#3E507F
Closest named color: Dusk (#4E5481). oklch(43.9% 0.081 267.2), rgb(62, 80, 127).
Aa
White text reads best on this color (7.89:1).
About this color
#3E507F is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.081 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.027 away. White text reads best on it, at 7.89:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.65:1 |
| White text | 7.89:1 |
Values
| HEX | #3E507F |
| RGB | rgb(62, 80, 127) |
| HSL | hsl(223, 34%, 37%) |
| OKLCH | oklch(43.9% 0.081 267.2) |
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 #3E507F | 7.89:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #3E507F | 2.65:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #3E507F text on white | 7.89:1 | AAA | Lc 87.3 | Fine for body text |
| #3E507F text on black | 2.65:1 | Fails | Lc -14.8 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D1D9EB
oklch(88.5% 0.026 266.6)
-
Step 300
300
#B3C0E0
oklch(80.8% 0.047 267.8)
-
Step 400
400
#8BA0D1
oklch(70.8% 0.076 266.5)
-
Step 500
500
#6F87C5
oklch(63% 0.098 267.4)
-
Step 600
600
#5870B1
oklch(55.6% 0.105 267.6)
-
Step 700
700
#485E98
oklch(49.1% 0.097 267.1)
-
Step 800
800 (this color)
#3E507F
oklch(43.9% 0.081 267.2)
-
Step 900
900
#324063
oklch(37.6% 0.063 266.8)
-
Step 950
950
#1E263A
oklch(27.1% 0.039 267.1)
#3E507F 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) | #3E5481 | 0.012 |
| Deuteranopia (no green cones) | #374F7E | 0.010 |
| Tritanopia (no blue cones) | #225A61 | 0.073 |
| Achromatopsia (no color) | #515151 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E507F
#3E507F
oklch(43.9% 0.081 267.2)
- #654F12
#654F12
oklch(43.9% 0.081 87.7)
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 #3E507F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.027
- Twilight #4E518B ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.032
- Dusk Blue #26538D ΔE 0.033
- YInMn Blue #415A77 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.040
- Light Navy #155084 ΔE 0.040
- Dusty Grape #545775 ΔE 0.045
Use #3E507F 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.